Laex G1 EM S&T Mains Q&A
Laex G1 EM S&T Mains Q&A
• Power utilities, electronics companies, the                based on Josephson junctions and rapid single
  military, transportation, and theoretical                  flux quantum technology).
  physics have all benefited strongly from the       •   Powerful superconducting electromagnets used
  discovery of these materials.                          in magnetic resonance imaging (MRI) and nuclear
• Maglev (magnetic levitation) trains-                   magnetic resonance (NMR) machines, magnetic
      ➢ These work because a superconductor              confinement fusion reactors (e.g. tokamaks), and
          repels a magnetic field so a magnet will       the beam-steering and focusing magnets used in
          float above a superconductor– this             particle accelerators.
          virtually eliminates the friction          •   RF and microwave filters (e.g., for mobile phone
          between the train and the track.               base stations, as well as military ultra-
      ➢ Superconducting magnets have been                sensitive/selective receivers)
          used to levitate trains above its rails.   •   High sensitivity particle detectors, including the
          They can be driven at high speed with          transition edge sensor, the superconducting
          minimal expenditure of energy.                 bolometer, the superconducting tunnel junction
      ➢ However, there are safety concerns               detector, the kinetic inductance detector, and the
          about the strong magnetic fields used          superconducting        nanowire       single-photon
          as these could be a risk to human              detector.
          health.                                    •   Superconductors are also used in high field
• Large hadron collider or particle accelerator-         scientific magnets.
      ➢ The latest and biggest large hadron          •   Superconducting magnetic propulsion systems
          collider built in Switzerland by a             may be used to launch satellites into orbits directly
          coalition of scientific organisations          from the earth without the use of rockets.
          from several countries.                    •   High-efficiency ore-separating machines may be
      ➢ Superconductors are used to make                 built using superconducting magnets which can be
          extremely powerful electromagnets to           used to separate tumour cells from healthy cells
          accelerate charged particles very fast         by high gradient magnetic separation method.
          (to near the speed of light).              •   Since the current in a superconducting wire can
• SQUIDs         (Superconducting       Quantum          flow without any change in magnitude, it can be
  Interference Devices):                                 used for transmission lines.
  These are used to detect even the weakest
                                                         The use of superconductors under development
  magnetic field. They are used in mine
                                                         (future uses)-
  detection equipment to help in the removal of
  land mines.                                            •   Very fast computing
• The USA is developing “E-bombs”-                       •   low-loss power cables
➢ These are devices that make use of strong,             •   Other impacts of superconductors on
  superconductor-derived magnetic fields to                  technology will depend on either finding
  create a fast, high-intensity electromagnetic              superconductors that work at far higher
  pulse that can disable an enemy’s electronic               temperatures than those known at present or
  equipment.                                                 finding cheaper ways of achieving the very cold
➢ These devices were first used in wartime in                temperatures currently needed to make them
  March 2003 when USA forces attacked an Iraqi               work.
  broadcast facility.
➢ They can release two billion watts of energy at
  once. fast digital circuits (including those
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        methane reforming process (methane                    Mention how block chain technology can solve the
        reacts with steam under pressure in                   environment crisis.
        presence of a catalyst to produce
                                                              Conclusion:
        hydrogen, carbon monoxide and a small
        amount of carbon dioxide).                            •   Digital infrastructure is a key to access the
   •    The biggest consumers of this hydrogen                    block chain technology for Environmental
        are refineries, chemical companies and                    solution.
        fertiliser plants.                                    •   It is evident that the block chain technology
   •    Green hydrogen accounts for just 0.1%                     can certainly help in solving the environmental
        global hydrogen production.                               crisis and improve sustainability in various
   •    India’s first integrated green hydrogen                   ways.
        electrolyser gigafactory in Bangalore with            •   However, driving the penetration of emerging
        the production of 20 MT green hydrogen.                   technology like block chain will require
   •    India can produce green hydrogen from                     improving digital infrastructure.
        15-20 GW installed capacity by 2030.                  •   As block chain and related digital technologies
   •    For that, it will need to invest $4-5 billion in          develop rapidly, policy makers are needed to
        electrolysers.                                            adjust the regulations that can help design
   •    The government is working on a pilot on                   future energy systems and mitigate
        blue hydrogen, hydrogen CNG and green                     environment crisis.
        hydrogen.
                                                              Content:
   •    The government are blending hydrogen
        with compressed natural gas for use as                Blockchain:
        transportation fuel and industrial input in
                                                              •   Block chain derives its name from the digital
        refineries.
                                                                  databases or ledgers where information is
   •    The government is planning to blend 15%                   stored as “blocks’’ that are coupled together
        green hydrogen with piped natural gas for                 forming “chains”.
        domestic, commercial and industrial
                                                              •   It offers a singular combination of permanent
        consumption.
                                                                  and tamper-evident record keeping, real-time
   •    The Ministry of New and Renewable                         transaction transparency and auditability.
        Energy is also working on a policy
                                                              •   An exact copy of the block chain is available to
        document for the national hydrogen
                                                                  each of the multiple computers or users who
        energy mission.
                                                                  are joined together in a network.
   •    Corporate India has got the drift and is
                                                              •   Any new information added or altered via a
        working overtime to tap the opportunity at
                                                                  new block is to be vetted and approved by over
        hand.
                                                                  half the total users.
3. What is blockchain technology? How Block-                  •   Even though block chain is well known for the
chain technology can help to combat the                           technology behind cryptocurrencies such as
environmental crisis?                                             Ethereum and Bitcoin, environmental
                                                                  researchers are now finding its use in solving
Introduction:
                                                                  the climate crisis, ranging from tracking the
Write briefly about block chain technology                        sustainability of products to monitoring
                                                                  pollution.
Body:
                                                              •   Over the last few years, governments and
                                                                  organizations worldwide have focused on
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    using various technological tools to mitigate          •   This eliminates any potential intermediaries
    climate change and biodiversity loss                       between investors and beneficiaries.
    challenges.                                            •   Through Sun exchanges solar panels,
•   One of the tools that could be highly effective            companies in south Africa have reduced their
    in tackling the climate crisis is block chain.             energy costs by nearly 30%
•   From a technology point of view, block chain is        •   Power Ledger, a technology company in
    a digitally distributed, decentralized ledger              Australia, has started to explore the impact of
    that helps track and verify transactions.                  block chain.
                                                           •   The Organisation established a pilot project in
Block-chain technology can help to combat the
                                                               India’s uttar Pradesh.
environmental crisis:
                                                           •   They allowed home owners with solar panels
•   Investments that involve large, international              on the roof tops to sell the power to other on
    sustainable development projects have                      the grid.
    become highly complicated causing delays and           •   This involves setting up of prices in real-time
    backlogs.                                                  and implementing transactions over the block
•   Block chain-enabled processes and platforms                chain
    can manage transactions highly effective and           •   These systems can help increase the
    efficient.                                                 deployment of renewable energy
•   Due to this reason, sustainable development            •   Block chain Technology can also useful for
    and other climate-related initiatives are                  sustainable and environmental friendly supply
    desirable for investors.                                   chain practices.
•   Block chain enabled processes and platforms            •   The Technology can track products from
    can help manage stakeholders that work in                  manufacturer and help prevent inefficiency
    different capacities                                       and waste by making supply chain transparent.
•   This will help increase efficiency, reduce             •   Block chain can also help the consumers better
    transactions and make climate-related                      understand how the products were made and
    sustainable development highly beneficial for              shipped.
    private investments.                                   •   This will allow them to make environmental
•   According to a report by the report by the                 friendly choices
    United Nations Environment Programme                   •   Foodtrax is the block chain-based App that
    (UNEP), block chains distributed ledger                    plans to track the foot from its origin to shelf
    technology       can     provide      significant          to eradicate food waste due to the storage and
    improvements       by     allowing    investors,           improper handling
    renewable energy project developers and                •   Through their block chain-based App, Foodtrax
    purchasers to collaborate on a common                      has interlinked data temperature loggers and
    platform with established global standards for             equipment measuring and monitoring,
    compliance due diligence.                                  focusing on the developing of a flexible
•    South Africa-based renewable energy start up              solution that covers all steps related to the
    Sun Exchange allows anyone with an internet                supply chain with transparency
    connection to purchase solar panels online and         •   An area of environmental sustainability where
    rent them to hospitals, schools, businesses and            the block chain can have a significant impact in
    other companies in Africa.                                 recycling program on the block chain,
•   Sun Exchange uses the Bitcoin block chain for              organizations can give the Financial Incentives
    making cross border payments.
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    something that hasn’t been actively pursued             representing the physiology of a biological
    until now.                                              process and clinical outcomes.
✓   The space where nanotechnology meets                  ➢ Nanoparticles injected into humans can detect
    healthcare is called nano-medicine.                     these biomarkers with extremely high efficacy
✓   Industry experts estimate the nano-medicine             as compared to scanning the human body
    market share to grow up to $260Bn in 2025               from the outside, thereby reducing the
    from $141Bn in 2020.                                    chances of drug failure/rejection.
✓   While nanostructures occur naturally in soil,
                                                            Medical Imaging:
    dust, oceans, plants, and animals, scientists
    today are building nano-materials with newly          ➢ Nanoparticles/Quantum dots are so small that
    manipulated attributes or engineered                    their surface area to volume ratio is relatively
    properties.                                             high, thus producing excellent contrast and
✓   This holds massive potential and opens new              fluoresce.
    doors in drug delivery systems, body scans,           ➢ In generic terms, a nanoparticle is more like a
    gene therapy, identifying cancer cells, and             glow-in-the-dark thing, and its ability to reflect
    health monitoring.                                      light will help us in biological labeling at the
✓   Nanotechnology is helping to considerably               molecular level.
    improve technology in sectors like information        ➢ Nanoparticles in medical devices and drug
    technology, homeland security, medicine,                therapy can give us much better diagnosis
    transportation, energy, food safety, and                results and treatments with a higher success
    environmental science.                                  rate.
The most promising use-cases of Nanotechnology             Wound Treatment:
in Healthcare:
                                                          ➢ One of the major pain points of wound healing
    Targeted Drug Delivery System:                          is contamination with microorganisms.
                                                          ➢ Silver nanoparticles have antibacterial and
➢ In conventional drug delivery mechanism,
                                                            anti-inflammatory properties that provide
  when you take a medicine for a headache, it
                                                            better wound healing efficacy with less
  possibly goes through your entire body,
                                                            bacterial resistance.
  including the head, to give you relief.
                                                          ➢ They can be used as scaffolds for skin
➢ This also means that the drug delivery
                                                            regeneration.
  mechanism is inefficient, slow, requires more
                                                          ➢ Nano-fibrous materials can also be used as
  drug consumption than needed, and may
                                                            delivery systems for drugs, proteins, growth
  impact non-targeted organs.
                                                            factors, and other molecules.
➢ Nanotechnology can carry drugs to specific
                                                          ➢ This will help us in targeted drug delivery with
  cells and release them when it reaches the
                                                            minimal and effective drug usage.
  targeted organ or area.
                                                          ➢ Needless to say, there exists great scope for
➢ This can be highly instrumental, for instance, in
                                                            advancements in nanotechnology that hold
  curtailing the side effects of chemotherapy.
                                                            the potential to revolutionize and reinvent
    Diagnosis:                                              healthcare systems despite existing hurdles.
                                                          ➢ Nanomedicine, nano-pharmacology, nano-
➢ A biomarker, is a measurement, substance, or
                                                            imaging, and targeted drug delivery systems
  chemical in the body which indicates a disease
                                                            will make the diagnosis and prevention of
  or a condition.
                                                            diseases, and care delivery more efficient and
➢ It is seen that nanotechnology can bridge the
                                                            patient-centric.
  gap between measurable biomarkers
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5. What is GAGAN system? Why ISRO’s GAGAN                      collaborated to develop the GPS Aided Geo
satellite navigation programme is a landmark in                Augmented Navigation (GAGAN) as a regional
Indian aviation?                                               Satellite Based Augmentation System (SBAS).
                                                           •   The GAGAN's goal is to provide a navigation
Introduction:
                                                               system to assist aircraft in accurate landing
Write briefly about GAGAN Satellite navigation                 over the Indian airspace and in the adjoining
                                                               area and applicable to safety-to-life civil
Body:
                                                               operations.
Mention the reasons why GAGAN satellite                    •   GAGAN is inter-operable with other
navigation programme is a landmark in Indian                   international SBAS systems.
Aviation sector.                                           •   GAGAN        is   the      first  Satellite-Based
Conclusion:                                                    Augmentation System in the world which has
                                                               been certified for approach with vertical
GAGAN will provide global recognisation to India’s             guidance operating in the equatorial
capabilities and also improve the operational                  ionospheric region.
efficiency in aviation sector and it has many more         •   GAGAN covers the area from Africa to
applications in other sectors as well.                         Australia and has expansion capability for
With ISRO’s GAGAN (GPS Aided Geo Augmented                     seamless navigation services across the region.
Navigation), India has become the first country in         •   GAGAN provides accuracy, availability, and
the Asia-Pacific to successfully develop such a                integrity essential for each phase of flight,
system for aviation use.                                       enroute the approach for airports within the
                                                               GAGAN service volume.
GAGAN and its work:
                                                           •   This makes airline operations more efficient
•   GPS Aided GEO Augmented Navigation                         and effective, increase air safety, and fuel
    (GAGAN) is a step by the Indian Government                 efficiency.
    towards Satellite-based Navigation Services in         •   GAGAN is designed to provide accuracy and
    India.                                                     integrity necessary to enable reliance on GPS
•   It is a system to improve the accuracy of a                for all phases of flight from enroute through
    global navigation satellite system (GNSS)                  approach, for all qualified airports within the
    receiver by providing reference signals.                   covered Zone.
•   GAGAN is a system of satellites and ground             •   It will also provide increased accuracy in
    stations that provide GPS signal corrections,              position reporting of aircraft, allowing for
    giving you better position accuracy.                       more uniform and high-quality air traffic
•   It is the first such system developed for India            management
    and neighboring countries in the equatorial            •   It will enable aircraft to land even at smaller
    region.                                                    and regional airport not equipped with
•   GAGAN works by augmenting and relaying                     expensive ground based landing systems.
    data from GPS satellites with the help of two          •   Further, with vertical guidance at runways, a
    augmentation satellites and 15 earth-based                 significant cost will be saved due to withdrawal
    reference stations.                                        of ground aids and reduced workload of airline
•   The system utilises the satellite-based wide               crew and traffic controllers.
    area augmentation system (SBAS) technology.            •   One essential component of the GAGAN
•   The Airports Authority of India (AAI) and Indian           project is the study of the ionospheric
    Space Research Organization (ISRO) have                    behaviour over the Indian region.
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•   The tele-medicine could be a potential tool for               proved in defence as well such as flame proof
    improving the health care facilities across the               coatings of equipment, search and rescue
    country, it will cut the cost of medical                      beacons, and aerogel thermal wear for soldiers
    treatment and at the same time ensure quality                 for sustaining extreme temperatures.
    services, particularly to people in rural areas.          •   It had started developing the QUEST program
•   ISRO has provided connectivity to rural                       at the request and interest of healthcare
    hospitals with the super specialty hospitals in               professionals in the country who were
    the country.                                                  interested in learning how the space agency
•   The use of various satellite-related innovations              handles safety, quality, and reliability for the
    in health sector, space imaging techniques can                interaction of man, machine, and environment
    be helpful for early detection of cancer,                     in its potential human spaceflight programs.
    cardiovascular disease and heart surgery.                 •   ISRO's technology spin-off in handling the
•   Monitoring of astronaut's heart in space can                  interaction of its man, machine, and
    be of great help to similar needs on the                      surrounding environmental conditions has the
    ground.                                                       potential to be useful for the healthcare sector
•   ISRO’s programs will provide the quality,                     of India. With inputs from ISRO, it has already
    affordable health care to all sections of our                 helped in developing cheaper artificial limbs,
    society by cutting down the cost of technology,               left ventricular assist, artificial jaws, and
    available to poor people.                                     ventilators, among other things.
•   Some futuristic developments involving the                7. What is GIS Technology? Mention role of
    'bio-capsules' to reduce the effect of high               Geospatial technology in Agriculture.
    radiation levels, treating diabetes and brain
    cancer as well as their use in gene therapy.              Introduction:
•   India's Space Programme is unique for its                 Write briefly about GIS technology.
    orientation to socio-economic objectives
    which is useful for many developing countries.            Body:
•   QUEST (Quality Upgradation Enabled through                Mention the GIS technology application in
    Space Technology) of ISRO will help 11                    agriculture.
    hospitals across the country in improving their
    safety, quality, and reliability.                         Conclusion:
•   With the Health-QUEST, ISRO will show                     •   As a result, geospatial technologies give a
    healthcare professionals on how the space                     farmer with a repository of information that he
    agency handles the interaction of man,                        may utilise to make informed decisions that
    machine, and environment in its potential                     ensure effective and efficient farm
    human spaceflight programs.                                   management and enhance productivity.
•   The technology involved in ISRO’s Health-                 •   To get the most out of their farms, farmers
    QUEST is a kind of spin-off of space programs                 should understand and utilise these
    technology.                                                   technologies in conjunction with their
•   It has helped develop cost-effective artificial               knowledge and expertise.
    limbs, left ventricular assist, artificial jaws, and
    ventilators, among other things.                          Content:
•   Both manned and unmanned spaceflights of                  •   Geospatial technology is a field that is rapidly
    ISRO undergo extreme temperature changes.                     evolving.
•   Another application of spin-off of ISRO
    technology in the health sector which has
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•   Geographic information systems (GIS), global               and agricultural development has progressed
    positioning systems (GPS), and remote sensing              at a rapid pace during the previous decade.
    (RS), all new technologies that aid the user in        •   Plantation crops are largely surveyed and
    the collecting, analysis, and interpretation of            mapped using geospatial technology.
    spatial data, are referred to as geospatial            •   In nations like Malaysia and Indonesia, rice
    technology (GST).                                          mapping is a big endeavor.
•   It is concerned with the relationship, state of        •   Australia is a prominent consumer of
    artificial and natural objects in space, whether           geospatial technologies, with remote sensing
    on Earth or elsewhere.                                     and geographic information systems (GIS)
•   In India, geospatial technology has made                   being particularly popular for mapping crops
    inroads into a variety of areas, both public and           like sugarcane and oil palms.
    private.                                               •   At the micro-level, geospatial techniques are
•   Agriculture, telecommunications, oil and gas,              primarily utilised for mapping groundwater
    environmental management, forestry, public                 resources, drainage patterns, variable rate
    safety, infrastructure, and logistics are among            fertiliser delivery, and pesticide and insecticide
    the major sectors in India that use geospatial             management.
    technology.                                            •   Increased yields, resource management,
•   The geospatial industry is expected to grow                prediction of outcomes, and improved farm
    rapidly in the next few years as stakeholders              practises are all benefits of geospatial
    from all sectors see the value and long-term               technologies in agriculture.
    cost effectiveness of adopting geospatial tools
                                                           Role in Carbon Sequestration:
    and technologies.
•   By 2025, India's GDP is predicted to reach $9-         •   The act of transferring and securely storing
    10 trillion, and the country's economy would               atmospheric CO2 into other long-lived carbon
    have transformed into one that is highly                   reservoirs is known as carbon sequestration
    industrialised and technologically advanced.               (CS).
•   To prepare for the anticipated economic                •   The capacity of integrated RS-GIS to do
    expansion, India would need an effective and               advanced spatial and/or temporal analysis on
    modern information and knowledge regime.                   several layers of high-resolution data.
•   In the future, geospatial technologies will be         •   This aids research activities aimed at
    crucial to information management in India,                controlling the global carbon cycle, mostly by
    and uses of this technology can have                       giving useful data and assisting with
    significant social and national implications.              implementation methods.
•   The market for GIS-based technology in India           •   In CS administration and monitoring, an
    has been growing.                                          integrated RS-GIS can be used as a Decision
•   Several Indian states, including Telangana,                Support System (DSS) tool.
    Andhra Pradesh, Karnataka, Rajasthan, and              •   The use of an integrated RS-GIS allows for the
    Tamil Nadu, have begun to use geospatial                   quantification of climatic and soil conditions
    technology to improve governance and                       across a region's geographical and temporal
    management.                                                variability.
                                                           •   Carbon stocks have been mapped using
Geospatial Technology's Impact on Agriculture:
                                                               remote sensing methods such as Synthetic
•   In the Asia-Pacific area, the use of new and               Aperture Radar (SAR), Light Detection and
    modern     information,     geospatial,  and               Ranging (LiDaR), and satellite sensors like as
    communication technologies (ICTs) for rural                Landsat, SPOT, and Ikonos.
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•   The recovery of vegetation increases the CS             8. Mystery ‘space debris found in three areas in
    potential of eroded soils.                              Gujarat. Discuss challenges associated to the
•   C-Lock, a new system that standardises the              Space Debris?
    estimation       of      agricultural      carbon
                                                            Introduction:
    sequestration credits, was developed using a
    regional-scale GIS as the operating platform.           Write briefly about Space debris
•   The association of soil CS potential with soil          Body:
    erosion type, altitude, soil type, and soil parent
    material was examined using a GIS in a recent           Mention the associated challenges and measures
    experiment to simulate soil CS potential in             to handle space debris.
    eroded locations.                                       Conclusion:
•   The regeneration of vegetation boosts the CS
    potential of degraded soils.                            •   We must think of the space environment as a
•   A biogeochemical model that simulates                       shared and limited natural resource.
    carbon, nutrient, and water dynamics for                •   To continue benefiting from the science,
    various ecosystems, is included in GIS system.              technology and data that operating in space
•   Precision carbon management, an expanding                   brings, it is vital that we achieve better
    domain of applied science, is made easier with              compliance with existing space debris
    such a technology.                                          mitigation guidelines in spacecraft design and
•   In CS management, the synergistic role of RS                operations.
    and GIS technologies was integrated.                    •   This is essential for the sustainable use of
•   Using an integrated RS-GIS method can help                  space.
    with CS management and monitoring                       Content:
    strategies.
•   This approach may be used to estimate above-            Space debris:
    and below-ground biomass, delineate                     •   Space debris can include natural space debris
    geographic variability, predict potential carbon            such as meteoroids, or man-made ones which
    stocks and revenues, and outline appropriate                can include defunct spacecrafts and satellites,
    management strategies for localised and                     stages of rockets which have launched
    regional scales in climate change mitigation.               payloads, dead satellites, satellite explosions
•   The use of an integrated RS-GIS strategy for                and collisions.
    precision carbon management will become                 •   According to NASA, “more than 25,000 objects
    increasingly obvious in the near future.                    larger than 10 cm are known to exist” as space
•   Farmers can better understand their farms'                  debris and the estimated population of
    site-specific demands by using remote sensing,              particles between 1 and 10 cm in diameter is
    GPS, and GIS.                                               approximately 500,000.
•   They can utilise this information to develop            •   According to NASA’s estimates, as of January
    and implement management approaches that                    2022, the amount of material orbiting the
    assure the best possible utilisation of inputs in           Earth exceeded 9,000 metric tons.
    order to maximise production and revenues.
                                                            Associated challenges with the space debris:
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•   Initially, there was no plan for what to do with           •   Many space agencies, private companies
    them at the end of their lives.                                and other space actors are changing their
•   Since then, numbers have continued to                          behaviour to adhere to these guidelines
    increase and explosions and collisions in space                but this is not enough
    have created hundreds of thousands of                      •   The number of debris objects, their
    dangerous debris.                                              combined mass, and the total area they
•   The biggest contributor to the current space                   take up has been steadily increasing since
    debris problem is explosions in orbit, caused                  the beginning of the space age.
    by left-over energy – fuel and batteries –                 •   This is further fueled by a large number of
    onboard spacecraft and rockets.                                in-orbit break-ups of spacecraft and rocket
•   Despite measures being in place for years to                   stages.
    prevent this, we see no decline in the number              •   The total area that space debris takes up is
    of such events.                                                important as it is directly related to how
•   Trends towards end-of-mission disposal are                     many collisions we expect in the future.
    improving, but at a slow pace.                             •   As things stand, collisions between debris
                                                                   and working satellites is predicted to
Measures need to handle the Space Debris:
                                                                   overtake explosions as the dominant
•   In view of the constant increase in space-                     source of debris.
    traffic, we need to develop and provide                    •   On average over the last two decades, 12
    technologies to make debris prevention                         accidentals fragmentations have occurred
    measures, and European Space Agency is                         in space every year and this trend is
    doing just that through its Space Safety                       unfortunately increasing.
    Programme.                                                 •   Fragmentation events describe moments
•   In parallel, regulators need to monitor the                    in which debris is created due to collisions,
    status of space systems as well as global                      explosions, electrical problems and even
    adherence to debris mitigation under their                     just the detachment of objects due to the
    jurisdiction more closely.                                     harsh conditions in space.
•   International guidelines and standards now                 •   While not all satellites currently comply
    exist making it clear how we can reach a                       with international guidelines, more and
    sustainable use of space:                                      more space actors are attempting to stick
➢   Design rockets and spacecraft to minimise the                  to the rules.
    amount of ‘shedding’ material becoming                     •   Rocket bodies are among the largest
    detached during launch and operation, due to                   objects we send to space and are at a high
    the harsh conditions of space.                                 risk of being involved in catastrophic
➢   Prevent explosions by releasing stored energy.                 collisions.
➢   ‘passivating’ spacecraft once at the end of                •   All steps to ensure they do not linger in
    their lives                                                    orbit after a maximum of 24 hours from
➢   Move defunct missions out the way of working                   launch.
    satellites                                                 •   High rates of debris mitigation in
        o either by de-orbiting them or                            geostationary orbit
        o moving them to a ‘graveyard orbit’                   •   Satellites launched into the geostationary
➢   Prevent in-space crashes through careful                       protected region, 35 586 - 35 986 km in
    choice of orbits and by performing ‘collision                  altitude, have very high rates of adherence
    avoidance manoeuvres’.                                         to debris mitigation measures.
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    •   Between 85% and 100% that reached the                  equipment manufacturing, universities, and
        end of their life this decade attempted to             laboratories.
        comply with these measures, of which 60 -          •   Comprehensive solar manufacturing policy: It
        90% did so successfully.                               is needed which clearly mention about robust
    •   In geostationary orbit, there is a clear               supply networks, lower cost supply
        commercial interest for operators to keep              agreements, subsidies on cost of power,
        their paths free from defunct satellites and           financing and capex, incentives for R&D etc.
        debris – to not do so would put their              •   Costs competitiveness: Solar manufacturing
        spacecraft, and bottom line, at serious risk.          has to deal with significant costs related to
    •   Continued creation of space debris will                setting up assembly lines, land acquisition,
        lead to the Kessler syndrome, when the                 labour needs, taxes, power costs and other
        density of objects in low Earth orbit is high          working capital requirements. Hence,
        enough that collisions between objects                 government needs to incentivize companies to
        and debris create a cascade effect, each               boost or set up new solar component
        crash generating debris that then increases            manufacturing capacity.
        the likelihood of further collisions.              •   Manufacturing excellence: India should deal
    •   At this point, certain orbits around Earth             with manufacturing excellence to build and
        will become entirely inhospitable.                     continuously innovate the cutting-edge
                                                               manufacturing mindset as opposed to build
9. Recently, India has received proposals for
                                                               and forget approach.
setting up 10 GW of solar equipment
manufacturing capacity. Discuss the need for               Content:
Solar manufacturing units in India.
                                                           Present capacity of solar manufacturing:
Introduction:
                                                           •   India’s renewable energy generation capacity
Write the significance of solar energy and the need            is the fourth largest in the world (currently 136
for solar manufacturing.                                       GW which is 36% of total capacity).
                                                           •   It is growing at the fastest speed among all
Body:
                                                               major countries.
Write briefly about present status of solar                •   The current capacity of solar cell
manufacturing units in India.                                  manufacturing in India is about 2,500 MW.
Mention the need for Solar manufacturing units in          •   In case of solar modules as well 7000 MW of
India and related challenges associated to it.                 capacity is being added in addition to existing
                                                               capacity.
Conclusion:                                                •   The nation has around 9 GW of annual solar
Some measures needed to overcome the                           module manufacturing capacity and around 3
challenges associated to Solar Manufacturing                   GW of annual solar cell production capacity.
Units in India:                                            •   A solar cell is the basic building block of a solar
                                                               module.
•   Developing an Ecosystem: Indian government
    must focus on creating manufacturing clusters          Need of       developing     Solar    manufacturing
    throughout the country similar to solar parks,         capacity:
    with the availability of the entire supply chain,      •   Harvest potential and Self-reliant: India need
    research and development (R&D) centers,                    to fully use its solar power potential, this is not
                                                               possible unless making India self-sufficient in
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    the manufacture of solar cells and modules,               (ALMM) for solar PV cells and modules will be
    batteries and ancillary equipment.                        eligible to participate in projects under
•   To curb import dependency: Currently, 80% of              government programs.
    solar cells and modules used in India are             •   Challenge at the World Trade Organisation
    imported from China and comprise $2.16                    (WTO): US has challenged India's solar energy
    billion of imports in 2018-19.                            policy before the World Trade Organisation
•   Meet domestic demand: India’s solar                       (WTO), on the line of domestic sourcing of
    manufacturing capacity is insufficient, under-            solar panels, which was upheld by WTO.
    utilised and unviable, as out of 2.5 GW demand
                                                          10. Private investors, Coal India Limited,
    in 2020 only 15% was met through domestic
                                                          Government exploring ways to make coal mining
    manufacturing.
                                                          more profitable. Discuss the issues related to
•   To achieve INDC targets: India’s current solar
                                                          Commercialisation of coal.
    power installed capacity is 35.73 GW. Hence,
    domestic manufacturing is needed to achieve           Introduction:
    set target of 175 GW of renewable energy by           Write briefly about present status of coal mining
    2022, which includes 100 GW from solar                regime in India.
    power generation.
                                                          Body:
Challenges faced by solar manufacturing in India
                                                          Mention the advantage and hurdles related to
•   Lack of Investment: Firstly, to achieve the 100       new Coal mine regime in India.
    GW target, India needs to invest $65 billion in
    the next four years, but major part investment        Conclusion:
    is raised within the country and there is less        Implement the measures that are suggested
    investment from foreign direct investment             below.
    (FDI).
•   Technology and R&D: India in comparison to            Content:
    China does not bring latest (next generation)         New commercial coal mining:
    technology at a competitive price, which
    hampers development of solar manufacturing            Key features of new regime:
    in India.                                             •   No previous mining experience is required for
•   High cost: Indian solar cells are, on average,            participating in bidding.
    20- 30% more expensive than cells                     •   100% foreign direct investment (FDI) through
    manufactured in China. Hence, manufacturers               automatic rule is allowed for coal mining.
    tend to choose affordable equipment through           •   The revenue sharing will be on an ad valorem
    import from China.                                        (the value of the transaction) basis and not on
•   Quality control issues: Some companies have               the basis of a fixed amount.
    voiced their concerns about the quality of            •   The present bidding terms also allow other
    Indian made cells and reported some                       minerals to be extracted from these blocks.
    manufacturers falsely label their 380 Wp              •   The Ministry of coal will help the private sector
    (capacity of a solar in watt peak) cells as 400           in getting statutory approvals like environment
    Wp because there are no government entities               and other approvals.
    to ensure the quality of these cells.
•   Policy issues: Only those models and                  Benefits from commercial coal mining
    manufacturers that are included in the
    approved list of models and manufacturers
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•   Reducing India’s dependence on import: India                number of bidders as the auctions are held in
    meets a fifth of its annual requirement of coal             the middle of COVID-19 pandemic.
    through imports which costs about Rs 1 lakh                 Additionally, no foreign firm has placed a bid
    crore. Commercial coal mining can cut the                   as there is declining trend in corporate and
    import bill by Rs 30,000 crore.                             financial interest in coal due to rising concerns
•   Modernizing the coal sector: The expectation                over its environmental and social fallouts.
    is that the new mining majors will set new              •   Eligibility criteria are broad enough to
    benchmarks in terms of mechanization,                       encourage non-serious bidding: Non serious
    automation, mining practices, etc. Thus, the                bidders may use coal mines as assets to
    new regime will spur improvements across the                leverage in the market, without any intention
    industry.                                                   of actually mining them as happened during
•   Enhancing productivity of the coal sector: By               the 2000s.
    ending the monopoly of Coal India Limited and           •   Deep pockets and risk management
    bringing in competition. Also, earlier captive              capabilities are needed for beginning the
    coal mining entities had no incentive to                    production: After winning a coal auction state
    enhance their production beyond their own                   and       mining    permits     are      required,
    needs.                                                      rehabilitation and resettlement needs to be
•   Meeting the demand: To meet its growth                      managed. Very few firms in India today have
    requirements and become self-sufficient, India              the financial and risk management capabilities
    need to expand its production to 1,500 million              to go through all of this.
    tonnes per year.
                                                            Further steps required to make the new
•   Revenue for the State: In captive coal mining           commercial coal regime a success
    companies were not required to pay royalty to
    states as mined coal was meant for their own            •   Addressing the concerns of the state regarding
    end use. But mines auctioned under new                      their declining revenue share: There are
    norms will generate total revenues of around                massive community and environmental
    Rs 7,000 crore per annum.                                   externalities of coal mining borne by states
•   Development of aspirational districts: Most of              harbouring these mines. Under new regime
    the mines auctioned under new norms are in                  states would lose an estimated Rs. 48 to Rs.
    aspirational districts. These mines would                   115 per tonne.Therefore, improving the design
    create more than 69,000 jobs once they are                  of auction is needed to address the revenue
    operationalised. Central Government will also               concern of States. Efforts like National Coal
    spend money in creating infrastructure in                   Index (NCI) could be initiated for transparency
    these regions that means additional job and                 in revenue.
    economic opportunity to such districts.                 •   Enact ‘Sustainable Coal Mining Code’ for
                                                                removing the overlapping jurisdictions of
Hurdles in India’s new commercial coal regime
                                                                multiple bodies: The code should consolidate
•   Opposition from state governments that may                  all     statutory     provisions      governing
    ensue legal battles: Jharkhand government has               opening/closing and environment/forest
    challenged the auctions under the new regime                matters related to coal mines. It should also
    arguing that it stands to lose vital forest cover,          establish an independent, multi-disciplinary
    its tribal communities will be displaced, and               unified authority for ensuring compliance with
    yet it hasn’t been consulted.                               various      clearance      and       regulatory
•   Purported shallow competition which may                     requirements.
    keep bid prices low: This is due to a smaller
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    coal, carbon emissions are bound to rise. This         ➢ So India needs to improve its grid connectivity
    will impact national expenditure on domestic             programs along with the development of
    environmental and health measures. Nuclear               Nuclear power.
    energy, in this context, offers a meaningful           • India should include all available energy
    alternative.                                             sources:
•   Limitations attached to other renewable                ➢ In 2018-19, India’s per capita electricity
    energy sources: Renewable energy is                      consumption was at 1181 kWh.
    environmental-friendly and a natural choice            ➢ This is very low if one can compare it with
    for India. But there are certain challenges              countries         like Canada (17179     kWh),
    associated with it. Such as,                             the US (13338 kWh), China (3000 kWh).
➢   Firstly, solar and wind energy generation              ➢ So, India needs to scale up electricity
    is land-intensive.                                       production to assure a reasonable quality of
➢   Secondly, nuclear                    plants have         life for citizens. Such requirements make India
    become completely                   indigenous.          enhance every available energy source.
    Whereas solar plants           require imported
                                                           12. What do you understand by the word Ethanol
    technology and materials such as photovoltaic
                                                           blending? Discuss the present Ethanol Blending
    cells, batteries, and storage equipment, etc.
                                                           program in India.
➢   Thirdly, solar and wind power generation
    needs energy storage systems. This makes               Introduction:
    them unsuitable as a baseload source of
                                                           Write briefly about current Statics related to the
    electricity.
                                                           Ethanol Blending in India
➢   Demand supply gap: There is a huge gap
    between energy demand and energy supply in             Body:
    India, due to its rapidly growing economy. So,
                                                           Mention the need for Ethanol Blending and
    the energy shortages in India will continue
                                                           challenges Associated to that.
    during the upcoming years. Focusing on
    nuclear now will help India to tackle those            Conclusion:
    challenges.
                                                           As we progress towards higher blending of
Measures to be taken-                                      ethanol, careful monitoring and assessment of
                                                           emissions changes will be needed to make sure
• Increase cleaner and sustainable sources:                that emission reduction potential can be
➢ India is a developing nation and its economy is          enhanced both for regulated and unregulated
  dominated by the manufacturing and service               pollutants.
  sectors, which are energy-intensive.
➢ India also has to find a middle ground between           Content:
  economic development and environmental                   Ethanol blending programme in India:
  sustainability, which requires it to change its
  energy mix.                                              •   The Centre had “launched pilot projects in
➢ So, India should increase cleaner, sustainable,              2001 wherein 5 percent ethanol blended
  and nuclear power sources to tackle future                   petrol was supplied to retail outlets”.
  needs.                                                   •   Success of field trials eventually paved the way
• India needs reliable power supplies:                         for the launching of the Ethanol Blended Petrol
➢ Nearly one-third of India’s population is still              (EBP) Programme in January, 2003 for sale of 5
  not connected to any of the country’s five                   percent ethanol blended petrol in nine States
  electricity grids.                                           and four UTs.
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•   Currently, 5 per cent of ethanol is blended with       •   Use of ethanol-blended petrol decreases
    petrol in India.                                           emissions such as carbon monoxide (CO),
•   The government of India has advanced the                   hydrocarbons (HC) and nitrogen oxides (NOx),
    target for 20 per cent ethanol blending in                 the expert committee noted. Higher
    petrol (also called E20) to 2025 from 2030. E20            reductions in CO emissions were observed
    will be rolled out from April 2023.                        with E20 fuel — 50 per cent lower in two-
•   This will help India strengthen its energy                 wheelers and 30 per cent lower in four-
    security, enable local enterprises and farmers             wheelers.
    to participate in the energy economy and               •   Spelling out the opportunity for India for
    reduce vehicular emissions.                                embracing ethanol, the paper stresses that
                                                               “availability of large arable land, rising
Ethanol:
                                                               production of food grains and sugarcane
•   Ethanol can be produced from sugarcane,                    leading to surpluses, availability of technology
    maize, wheat, etc which are having high starch             to produce ethanol from plant-based sources,
    content.                                                   and feasibility of making vehicles compliant to
•   In India, ethanol is mainly produced from                  ethanol blended petrol make E20 not only a
    sugarcane molasses by fermentation process.                national imperative, but also an important
•   Ethanol can be mixed with gasoline to form                 strategic requirement”.
    different blends.                                      •   In Europe, biofuels have been seen as a
•   As the ethanol molecule contains oxygen, it                measure to reduce emissions of greenhouse
    allows the engine to more completely combust               gases from road transport because they were
    the fuel, resulting in fewer emissions and                 considered CO2-neutral fuels once lifecycle
    thereby reducing the occurrence of                         emissions are considered.
    environmental pollution.                               Challenges:
•   Since ethanol is produced from plants that
    harness the power of the sun, ethanol is also          • Less Production:
    considered as renewable fuel.                          ➢ Currently, domestic production of bioethanol
                                                             is not sufficient to meet the demand for bio-
Need for Ethanol blending in India:                          ethanol for blending with petrol at Indian
•   Ethanol has become one of the major priorities           OMCs.
    of 21st Century India.                                 ➢ Sugar mills, which are the key domestic
•   Mixing 20 percent ethanol in petrol holds                suppliers of bio-ethanol to OMCs, were able to
    multiple attractions for India.                          supply only 57.6% of the total demand.
•   First, it can potentially reduce the auto fuel         ➢ Sugar mills do not have the financial stability to
    import bill by a yearly $4 billion, or Rs30,000          invest in biofuel plants.
    crore.                                                 ➢ There are also concerns among investors on
•   Second, it also provides for farmers to earn             the uncertainty on the price of bioethanol in
    extra income if they grow produce that helps             the future as the prices of both sugarcane and
    in ethanol production.                                   bio-ethanol are set by the central government.
•   Third, and no less important, is the fact that         • Compatible vehicles:
    ethanol is less polluting than other fuels and,        ➢ vehicles need to be produced with rubberised
    per the NITI Aayog paper, “offers equivalent             parts, plastic components and elastomers
    efficiency at lower cost than petrol”.                   compatible with E20 and engines optimally
                                                             designed for use of E20 fuel”
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➢ The NITI Aayog paper said that two-wheelers             transportation, thus increasing the cost and risk
    and passenger vehicles that are now being             factor.
    made in the country “are designed optimally
                                                          12. Discuss the major achievements of ICAR in
    for E5 (5 percent ethanol blend with petrol)
                                                          Crop Science.
    while rubber and plastic components are
    “compatible with E10 fuel”.                           Introduction:
• Water Foot-print:                                       Discuss the objectives of ICAR.
➢ While India has become one of the top
    producers of ethanol but it lags top producers,       Body:
    the USA and Brazil, by a huge margin and              Mention the list of achievements of ICAR in the
    remains inefficient in terms of water usage.          field of crop science.
➢ India’s water requirements for producing
    ethanol are not met through rainwater and the         Conclusion:
    groundwater is used for drinking and other            Write the way forward
    purposes.
➢ Water footprint, that is water required to              Content:
    produce a liter of ethanol, includes rainwater        The Indian Council of Agricultural Research (ICAR)
    at the root zone used by ethanol-producing            is an autonomous organisation under the
    plants such as sugarcane, and surface, ground         Department of Agricultural Research and
    water, and fresh water required to wash away          Education (DARE), Ministry of Agriculture and
    pollutants.                                           Farmers Welfare , Government of India.
• Limited Sugarcane Availability:
➢ Sugarcane is another limited resource that              Formerly known as Imperial Council of Agricultural
    affects the ethanol blending in the country.          Research, it was established on 16 July 1929 as a
➢ In order to achieve a 20% blend rate, almost            registered society under the Societies Registration
    one-tenth of the existing net sown area will          Act, 1860 in pursuance of the report of the Royal
    have to be diverted for sugarcane production.         Commission on Agriculture.
    Any such land requirement is likely to put a          The ICAR has its headquarters at New Delhi. The
    stress on other crops and has the potential to        Council is the apex body for co-ordinating, guiding
    increase food prices.                                 and managing research and education in
➢ India’s biofuel policy stipulates that fuel             agriculture including horticulture, fisheries and
    requirements must not compete with food               animal sciences in the entire country.
    requirements and that only surplus food crops
                                                          Thrust Areas of ICAR in Crop Science-
    should be used for fuel production, if at all.
• Lack of Alternatives:                                   Harnessing conventional and modern scientific
➢ Producing ethanol from crop residue can be a            knowledge, tools, and cutting-edge of science for
    good alternative but the annual capacity of           development of improved crop varieties/hybrids
    bio-refinery is still not enough to meet the 5%       suited to diverse agro-ecologies and situations,
    petrol-ethanol blending requirement.                  and efficient, economic, eco-friendly and
➢ Other biofuels such as Jatropha have often              sustainable crop production and protection
    proven to be commercially unviable.                   technologies; promoting excellence in basic,
• Handling issues:                                        strategic and anticipatory crop science research
Ethanol being a highly flammable liquid marks
obligatory safety and risk assessment measures
during all phases of production, storage and
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Refinement of seed-production technologies and              hybrids in quality protein maize (QPM) and baby
production of breeder seed with added emphasis              corn for high nutritional value in addition to high
on hybrid cultivars                                         yield
                                                            Employed genes for stress resistance and quality
                                                            in several crops from their wild relatives;
                                                            developed early and suitable plant types for new
                                                            niche areas and cropping systems in pulses and
                                                            other crops; evolved effective male sterility
                                                            systems for hybrid development in many crops
Cloned and characterized a gene 'Pi-Kh' that             including Interactive Kiosks for Basmati rice,
confers resistance to Blast disease; validated the       cotton, mustard, chickpea and groundnut
gene in transgenic rice
Identification of novel Arabidopsis derived
promoter that drives constitutive expression of
foreign genes in transgenic plants
Isolated and cloned drought stress responsive
transcription factors 'TaCBF5' and 'TaCBF9' from
drought tolerant wheat variety C 306
                                                         Digitalized extant-notified varieties database using
Sequenced 6.7 million base pairs of long-arm of          Indian Information System (INDUS) software;
chromosome 11 of rice in a major global effort           developed DUS test parameters for 35 crops for
DNA fingerprinting in 33          major crops;           Indian conditions.
fingerprinted 2215 released       varieties and          Doubled the seed production of improved
landraces.                                               varieties in a year amounting to 606,000 quintals
                                                         during 2006-07 through a mega seed project; thus
                                                         enhanced the transfer of released varieties for
                                                         cultivation
                                                         13. Mention the list of useful plants and their
                                                         utility to mankind.
                                                         Introduction:
                                                         Mention the overall usage of plants to humans.
Conserved over 346,000 germplasm accessions of           Body:
crops and their wild relatives at NBPGR, New
Delhi, and 2, 517 microorganism cultures (394            Mention the names of various useful and harmful
bacterial, 2, 077 fungal, 36 Actinomycetes and 10        plants and their utility.
yeast accessions) at NBAIM, Mau; digitalized             Conclusion:
database of over 175,000 insect species at IARI,
New Delhi                                                Content:
Established a mechanism of registration and              Plants provide us with food, fiber, shelter,
documentation of potentially valuable plant              medicine, and fuel. The basic food for all
germplasm at NBPGR, New Delhi; registered 482            organisms is produced by green plants. In the
accessions belonging to 77 plant species                 process of food production, oxygen is released.
                                                         This oxygen, which we obtain from the air we
Developed the bioinsecticide strain DOR Bt-l,            breathe, is essential to life.
registered and commercialized its formulation
KNOCK W.P. along with a low-cost mass                    Here we have a list of scientific names of the
multiplication methodology for integrated                common plants –
management of semilooper caterpillar in a                 Common Names           Scientific Names
number of crops; developed endosulfan-tolerant
strain of Trichogramma chilonis (Endograma);              Apple                  Pyrus malus
deployed Pest Management Information System               Bamboo                 Bamboosa aridinarifolia
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➢ Bioindicators are living organisms such as              •   Biotechnology sector is one sector which
  plants that are used for assessing                          touches the lives of common people deeply as
  environmental health and biogeographic                      it connects to important sectors such as
  changes taking place in the environment.                    healthcare, agriculture, startup ecosystem etc.
➢ Plants play a vital role in recycling matter in         •   There is a need to support the development of
  biogeochemical cycles.                                      the sector by providing funds and encouraging
➢ Cotton, jute, coir, hemp and flax are the                   private investment.
  different sources of plant fibres.                      •   The government cannot be expected to be the
➢ During the process of photosynthesis, plants                source of all funding, especially during the
  produce oxygen and absorb carbon dioxide.                   pandemic-induced stress in the economy.
➢ Many edible trees provide us with gum,
                                                          Content:
  rubber, paper, and other raw materials used to
  make paper.                                             •   India’s bio-economy has grown eight times in
➢ Plants also maintain the ozone layer and help               the last eight years and that the demand is on
  save the earth’s life from damaging UV                      the rise in the country.
  radiation.                                              •   India has grown from $10 billion to $80 billion.
➢ Plants also yield condiments like pepper,               •   Realising the importance of biotechnology,
  ginger,     cardamom,       turmeric,     cloves,           the Indian      government      created      the
  cinnamon, nutmeg, vanilla, etc.                             Department of Biotechnology in the early 90s,
➢ There are a few plant species that provide                  to make India a powerhouse with respect to
  dyes. These dyes are secreted from the roots,               the Biotechnology industry.
  bark, leaves, fruit or wood of indigo, henna,           •   The educational institutions were also
  and turmeric plants.                                        strengthened to cater to the increasing use of
➢ Plants also provide us with some refreshing                 biotechnology in many important walks of life.
  and stimulating beverages. This includes                •   There are five big reasons why India is being
  leaves of the tea plant, seeds of coffee and                considered a land of opportunities in the field
  cocoa plants.                                               of the biotechnology—
➢ Sunflower oil, groundnut oil, olive oil, mustard                ➢ diverse population and diverse climatic
  oil, almond oil, coconut oil, etc., are different                   zones,
  types of oil extracted from oilseeds and fleshy                 ➢ India’s talented human capital pool,
  fruits.                                                         ➢ increasing efforts for ease of doing
1.India’s bio-economy has grown eight times in                        business in India,
the last eight years and that the demand for                      ➢ the demand for bio-products is
biotechnology in the country is on the rise.                          increasing continuously in India and
Explain the need for Biotechnology sector for the                 ➢ India’s biotech sector and its track
economic growth in India?                                             record of success.
                                                          •   Biotechnology sector is considered a sunshine
Introduction:
                                                              sector of Indian economy.
Discuss the facts on bio-economy in India                 •   It contributes almost 3% to the Indian
                                                              GDP and has cascading effects on the different
Body:
                                                              sectors of the economy.
Discuss    various     application     areas    of        •   It can contribute to the growth of the Indian
biotechnology.                                                economy and help meet the government’s
                                                              stated goal of $5 trillion economy by 2024.
Conclusion:
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•   In the last eight years, the number of startups        ➢ The biotechnology industry is a part of the
    in our country has increased from a few                  knowledge economy which is relatively easy to
    hundred to 70,000 in 60 different industries. In         scale up, especially for India.
    this more than 5,000 startups are associated           ➢ since we have a huge human resource base in
    with biotechnology.                                      the form of demographic dividend.
•   The number of investors in the biotechnology           • Sustainability:
    sector has risen by nine times and biotech             ➢ Biotechnology sector has the potential to help
    incubators and funding for them have                     in utilising the resources in a more efficient
    increased by seven times.                                manner by modifying the present inputs.
•   The number of biotech incubators has                   ➢ For e.g. improved seeds have the capacity to
    increased from six in 2014 to 75 now.                    provide better yields in the same unit area,
•   Biotech products have increased from 10                  leading to better utilisation of already scarce
    products to more than 700.                               geographical area.
•   The developments in health, agriculture,               ➢ At the same time, it is helping in creating tools
    energy, natural farming, bio fortified seeds are         for a better environment in the form of low
    creating new avenues for the sector.                     wastage products, waste to sanitation as well
                                                             as cleaning technology like oil zapper.
Need for Biotechnology Sector:                             • Self-Reliance:
•   Foundation stone for different sectors:                ➢ India’s prowess in the biotechnology sector is
    Biotechnology sector contributes to the                  also helpful in decreasing independence on
    development of different sectors like:                   technologically advanced products created in
➢   Agri-tech: Advances in biotechnology directly            more advanced western countries.
    contribute to the development of agriculture,          ➢ For e.g., despite India’s dependence on foreign
    as biotechnology provides more advanced                  companies for the initiation of Genetically
    inputs to agriculture in the form of drought-            Modified crops, now the capacity has been
    resistant crops, higher yield seeds, etc.                created in the Indian research ecosystem to
➢   Clean-tech: Scientists have discovered and               develop new varieties of crops, which are
    enhanced various forms of micro-organisms,               better suited to Indian conditions.
    which contribute to waste management. For              • Investment Destination:
    e.g. Oil zapper technology uses bacteria to            ➢ Biotechnology is a sunshine sector and holds a
    clean up oil spills.                                     lot of potential going forward.
➢   Health-tech: Biotech contributes to healthcare         ➢ This makes it a fertile sector for foreign
    in the form of genetics and bio-informatics              investment.
    which can be utilised for fighting genetic and         ➢ Therefore, it is important to facilitate the
    other diseases with the help of modified                 industry, if India needs another avenue for
    micro-organisms.                                         foreign investment.
➢   Industrial biotech: The commercial uses of the         • Employment Creation:
    biotechnology include usage of different               ➢ Biotechnology sector is a base sector for the
    micro-organisms to produce commercially                  improvement of agriculture.
    viable products. For e.g. probiotic curd is            ➢ This is critical especially in the context of India
    considered advantageous for the body as it               as nearly two-thirds of the Indian population is
    contains different type of beneficial                    still dependent on the agriculture sector.
    organisms.                                             ➢ For e.g., GM crops hold the potential to
•   Knowledge Economy:                                       increase the yields of the crops.
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➢ However, there is a need for a complete study                interspaced palindromic repeat (CRISPR)”
  into the sustainability of GM crops and their                associated proteins based systems.
  long term effects on the environment, before             •   This system allows for targeted intervention at
  giving final approval to them.                               the genome sequence.
                                                           •   This tool has opened up various possibilities in
14. The Centre has paved the way for easy                      plant breeding.
introduction of genome edited crops. What is               •   Using this tool, agricultural scientists can now
genome editing and how is it different from                    edit genome to insert specific traits in the gene
genetically modified crops?                                    sequence.
                                                           •   Depending on the nature of the edit that is
Introduction:
                                                               carried out, the process is divided into three
Write briefly about Genome Edited crop.                        categories — SDN 1, SDN 2 and SDN 3.
                                                           ➢   SDN1 introduces changes in the host genome’s
Body:
                                                               DNA through small insertions/deletions
Mention how genome editing different from                      without introduction of foreign genetic
Genetically Modified Organisms                                 material.
                                                           ➢   In the case of SDN 2, the edit involves using a
Mention the Regulatory issues which have
                                                               small DNA template to generate specific
prevented wider adoption of this techniques.
                                                               changes.
Conclusion:                                                ➢   Both these processes do not involve alien
                                                               genetic material and the end result is
•   In the face of new technological advancements
                                                               indistinguishable from conventionally bred
    such as Genome Technology, the regulatory
                                                               crop varieties.
    regime needs to be strengthened as well as
                                                           ➢   On the other hand, SDN3 process involves
    rationalised, for the sake of domestic as well as
                                                               larger DNA elements or full length genes of
    export consumers.
                                                               foreign origin which makes it similar to
•   Technology approvals must be streamlined,                  Genetically modified organisms (GMO)
    and science-based decisions implemented.                   development.
•   Rigorous monitoring is needed to ensure that
    safety protocols are followed strictly, and            Gene editing different from GMO development:
    enforcement must be taken seriously to
                                                           •   Genetically modified organisms (GMO)
    prevent the spread of illegal GM crops.                    involves modification of the genetic material
Content:                                                       of the host by introduction of a foreign genetic
                                                               material.
•   The central government paved the way for
                                                           •   For example, in case of cotton, introduction of
    easy introduction of genome edited crops.                  genes cry1Ac and cry2Ab mined from the soil
•   A technique which allowed to ‘cut’ DNA                     bacterium Bacillus Thuringiensis (BT) allow the
    strands and edit genes to bring about desired              native cotton plant to generate endotoxins to
    changes in the genome by using site directed               fight pink bollworm naturally. BT Cotton uses
    nuclease (SDN) or sequence specific nuclease               this advantage to help farmers naturally fight
    (SSN). Nuclease is an enzyme which cleaves                 pink bollworm which is the most common pest
    through nucleic acid which is the building block           for cotton farmers.
    of genetic material.                                   •   The basic difference between genome editing
•   Advanced research has allowed to develop the               and genetic engineering is that while the
    highly    effective    “clustered      regularly
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•   Then there are companies using it to deliver                   ➢ Misuse of these technologies and a
    fixed nitrogen to plants instead of using                           failure to account for unintended
    fertilisers, engineering microbes to create food                    consequences could cause irreversible
    additives or brew proteins.                                         environmental damage.
•   Currently, approvals for such crops come from              •   Do-It-Yourself Biology:
    the Genetic Engineering Appraisal Committee                ➢   It’s a movement of “citizen scientists”
    (GEAC)       under     the    Department      of               interested      in     synthetic    biology
    Biotechnology.                                                 experiments that has become an
                                                                   international phenomenon over the last
Applications of Synthetic Biology:
                                                                   decade.
•   Standardised Biological Parts: identify and                ➢   Often with little prior knowledge of the
    categorise standardised genomic parts that                     field, enthusiasts meet in makeshift labs to
    can be used (and synthesised quickly) to build                 take crash courses in biotechnology and
    new biological systems.                                        conduct hands-on experiments.
•   Applied Protein Design: Redesign existing                  •   Ethical Concerns: Many of the ethical
    biological parts and expand the set of natural                 questions relevant to synthetic biology are
    protein functions for new processes.                           similar to ethical discussions related to
    For eg: Modified rice to produce beta-                         genome editing like:
    carotene (a nutrient usually associated with               ➢   Are humans crossing moral boundaries by
    carrots), that prevents Vitamin A deficiency.                  redesigning organisms with synthetic
•   Natural Product Synthesis: Engineer microbes                   biology techniques?
    to produce all of the necessary enzymes and                ➢   If synthetic biology yields new treatments
    biological functions to perform complex                        and cures for diseases, who in our society
    multistep production of natural products.                      will have access to them?
    For     e.g,     Microorganisms      harnessed         16. Mention the potential application of
    for bioremediation (use         of        living       Biotechnology in the conservation of
    microorganisms to degrade environmental                Environment.
    contaminants into less toxic forms) to clean
                                                           Introduction:
    pollutants from water, soil and air.
•   Synthetic Genomics:Design and construct a              Write briefly about biotechnology and its
    ‘simple’ genome for a natural bacterium.               importance
    For e.g, Yeast engineered to produce rose oil
                                                           Body:
    as an eco-friendly and sustainable substitute
    for real roses that perfumers use to make              Mention the application of biotechnology in
    luxury scents.                                         Environment.
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    petroleum treatment facilities) and converts          •   Biosensors are capable of detecting extremely
    them into innocuous CO2 and water.                        low levels of proteins, hormones, pollutants,
                                                              gases, and other molecules.
Following are the types of bioremediations:
                                                          Biotransformation
•   Biotransformation: It is a process of
    bioremediation in which a complex compound            •   The changes in the biology of the environment,
    is converted to non-toxic form. This process              which are changes of the complex compound
    mainly refers to pharmacologic activity, mainly           from simple non-toxic to toxic, is called the
    drugs and xenobiotic                                      biotransformation process
•   Phytoremediation: The term Phyto meaning              •   It is used in the Manufacturing sector where
    plant and remedial meaning restoring balance.             poisonous substances are converted to by-
    In this process of phytoremediation, green                products
    plants and microorganisms are used to
                                                          Biomarkers:
    decrease the contaminated soils, sludge’s,
    sediments, ground and surface water                   •   It is an application of biotechnology in the
•   Microbial Remediation: In this process of                 environment that responds to the chemicals
    microbial remediation, microorganisms are                 to Measure the effect of pollution caused.
    used to degrade organic contaminants. The             •   Biomarker is also an application of
    process of microbial remediation can be                   environmental biotechnology by measuring
    aerobic or anaerobic                                      levels of chemicals or toxic or pollution that
•   Molecular Ecology: this process is associated             damages the environment.
    with evolutionary biology by applying different       •   It is a major tool to create a link between the
    methods       like    population      genetics,           oils and its sources.
    phylogenetic, etc. DNA fingerprinting is used
                                                          17. Examine the role of biotechnology in
    to understand the aspects of nature. This
                                                          achieving food security in India. What are various
    technique is also used to study the population
                                                          challenges faced by biotechnology sector in
    diversity of wild animals, especially the
                                                          India?
    footprints of cheetah and polar bears
•   Myco-remediation: In this process of                  Introduction:
    bioremediation, fungi are used for
                                                          Write briefly about Food Security
    decontamination. Myco-remediation is so
    called as there is use of fungal-mycelia in the       Body:
    process of bioremediation. In an ecosystem,
                                                          Mention the role of biotechnology in achieving
    fungus breaks down the organic substances
                                                          food security in India and associated challenges to
    into smaller and simplest forms. Fungal
                                                          it.
    mycelia produce extracellular enzymes and
    acids which help in the breakdown of lignin           Conclusion:
    and cellulose.
                                                          •   Population pressure has already begun to
Biosensors:                                                   affect the environment in large parts of the
                                                              developing world.
•   It combines a biological component (such as an
                                                          •   Because of intensive land use and widespread
    enzyme) with various electronic components
                                                              biomass shortage, cultivated soils are being
    to trigger a circuit when a particular type of
                                                              depleted of essential nutrients and organic
    chemical is detected.
                                                              matter.
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•   Fisheries, livestock and forestry resources are              information on genes responsible for
    also under increasing strain.                                important agronomic traits. Gene information
•   Biotechnology is the one of the important way                can be used to accelerate breeding
    out for this.                                                programmes and develop high-yielding and
                                                                 better varieties faster.
Content:
                                                             •   For example, the International Crops Research
•   Food insecurity is one of the most pressing                  Institute for the Semi-Arid Tropics (ICRISAT),
    problems today, creating directly or indirectly              have developed improved lines of chickpea
    several other challenges.                                    (tolerant to drought), groundnut (resistant to
•   The challenge of nutritiously feeding the                    foliar disease), pearl millet (having high iron
    skyrocketing population will be even more                    and zinc contents) and sorghum (tolerant to
    severe in coming times.                                      drought).
•   For instance, the National Institute of Nutrition        •   We have already seen the success of Bt cotton
    highlights that majority (two-thirds) of the                 in our country, as India from being an importer
    states have a high percentage of malnourished                a few years ago has now become a major
    children and high level of wasting.                          exporter. The other potential GM crop to help
•   This is mainly because of the non-                           the farming community is GM mustard.
    availability/non-accessibility of/to enough              •   Biotech crops can play a significant role in food
    amounts of proteins and micronutrients for                   security, giving farmers satisfaction about their
    pregnant women and children under the age                    benefits and high adoption rates. Biotech
    of five.                                                     crops helped alleviate poverty by helping 18
•   The recently released Global Hunger Index also               million small farmers and their families,
    highlights that the situation is serious for India.          totaling 65 million people.
                                                             •   The spectrum of potential benefits from the
Food security has three dimensions:                              application of genetic engineering and
•   Availability of sufficient quantities of food of             biotechnology to food crops in developing
    appropriate quality, supplied through                        countries ranges from diagnostic aids, for
    domestic production or imports.                              example in plant diseases, through to gene
•   Access by households and individuals to                      mapping.
    appropriate foods for a nutritious diet.                 •   The main objective of research and
•   Optimal uptake of nourishment thanks to a                    development for food security is to find
    sustaining diet, clean water and adequate                    improved seed varieties, that enable reliable
    sanitation, together with health care.                       high yields at the same or lower tillage costs
                                                                 through qualities such as resistance to or
Securing food security with biotechnology:                       tolerance of plant diseases (fungi, bacteria,
•   There are a range of biotechnological                        viruses) and animal pests (insects, mites,
    approaches, including both traditional ones                  nematodes) as well as to stress factors such as
    like selective breeding and fermentation                     climatic variation or aridity, poor soil quality.
    techniques, and modern ones such as                      •   Equally important objectives are the transfer
    genomics, molecular breeding and genetic                     of genes with nitrogen-fixing capacity onto
    engineering, that can contribute towards                     grains, and the improvement of food quality by
    achieving food and nutrition security.                       overcoming vitamin or mineral deficiencies. All
•   In the current era, advances in genomics                     these crucial and basic needed expectations
    sciences have equipped scientists to decode                  can be satisfied with the use of biotechnology.
    genomes for any crop species and we can get
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•   The genotype is a set of genes in DNA                      These include Artificial insemination (AI),
    responsible for unique traits or characteristics           Embryo transfer (ET), In-vitro fertilization (IVF),
    while the phenotype is the physical                        Somatic cell nuclear transfer, and the
    appearance or characteristic of an organism.               emerging technology on somatic cell nuclear
                                                               transfer.
Application of biotechnology in Agriculture:
                                                           •   Artificial insemination is the deliberate
•   Biotechnology has played a major role in                   introduction of sperm into a female’s cervix or
    agriculture by altering genes, studying and                uterine cavity for the purpose of achieving a
    cloning various crops in order to provide better           pregnancy through in vivo fertilization by
    quality products of foods ultimately improving             means other than sexual intercourse or
    our lives.                                                 invitro-fertilisation.
•   Hybrid Seeds, Artificial Seeds, Photosynthesis         •   Embryo transplantation, used with cattle,
    improver, Stress resistant crops and plants, Bio           goats, pigs, and sheep, aims to increase the
    fertilizers, Bio-pesticides are some of the                number of offspring from a quality female.
    potential applications.                                •   Cloning embryos to artificially produce genetic
•   Potential advantages that biotechnology can                duplicates of an animal has also become
    confer across a wide range of agricultural                 possible.
    applications are in areas such as livestock            •   Direct manipulation and alteration of an
    management, storage of agricultural products               animal’s       genetic   material—         genetic
    and sustaining current crop yields, while                  engineering—has the potential to produce
    reducing the use of fertilizers, herbicides and            even more drastic changes in animal breeding.
    pesticides.                                                It is believed that genetically altered pigs may
•   Biotechnology offers a very promising                      one day be able to provide compatible organs
    alternative to synthetic foods and an                      for          emergency           transplantation
    improvement on conventional plant-breeding                 (xenotransplantation) into humans.
    technologies. Combined with other advanced
                                                           Application of Biotechnology in Food Processing:
    agricultural technologies, it offers an exciting
    and environmentally responsible way to meet            •   Modern Biotechnology is helpful in enhancing
    consumer demand for sustainable agriculture.               taste, yield, shell life and nutritive values. This
                                                               is also useful in food processing (fermentation
Application    of   biotechnology      in   Animal
                                                               and enzyme involving processes). So
Husbandry:
                                                               Biotechnology is beneficial in erasing hunger,
•   The application of biotechnology in this area,             malnutrition and diseases from developing
    in increasing production efficiency through                countries and third word.
    manipulation and control of physiological              •   Modern        biotechnology       products      are
    systems and improving the health and well-                 commercially reasonable hence it can improve
    being of animals, assumes great significance.              agriculture as well as food industry that will
•   Biotechnology is being harnessed in various                result in raise in income of poor farmers.
    aspects of the livestock industry to hasten            •   Biotechnology has a major application in the
    breed development for improved animal                      food sector.
    health and welfare, enhanced reproduction,             •   Bread, cheese, wine, beer, yogurt, and vinegar
    and improved nutritional quality and safety of             are all made by culturing microorganisms and
    animal-derived foods.                                      are really the oldest products of
•   Various biotechnology methods are used                     biotechnology.
    in improving the breeding stock of animals.
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•   It helps in improving the edibility, texture, and      •   These stakeholders must appreciate that the
    storage of the food; in preventing the attack of           only way to postpone resistance is through
    the food, mainly dairy, by the virus like                  improved hygiene and vaccinations.
    bacteriophage.                                         •   Increasing      public      awareness       and
•   Biotechnologists are also developing tests that            understanding is therefore the most crucial
    will allow the detection of food-contaminating             pillar   towards      tackling     antimicrobial
    microorganisms and the toxins they produce,                resistance.
    which may be present only in minute                    •   AMR is an increasingly serious threat to the
    quantities.                                                global public health that requires action across
•   Biotechnology also has applications in                     all government sectors and societies.
    the detection of mutagens (substances that
                                                           Content:
    cause genetic mutations) in individual food
    products.                                              Antimicrobial Resistance:
•   GM crops which have been approved for use in
    food items in select countries include corn,           •   Antimicrobial resistance is the resistance
    maize, soya, tomato, potato and papaya.                    acquired by any microorganism (bacteria,
•   Latest      innovations    in     biotechnology            viruses,     fungi,    parasite,    etc.) against
    that fortify major staples with micro nutrients            antimicrobial drugs (such as antibiotics,
    like vitamin A, zinc and iron can be game                  antifungals, antivirals, antimalarials, and
    changers for hunger problem in India.                      anthelmintics) that are used to treat
                                                               infections.
19. Antimicrobial resistance (AMR), is now a               •   As a result, standard treatments become
leading cause of death worldwide, higher than                  ineffective, infections persist and may spread
HIV/AIDS or malaria. Analyze.                                  to others.
Introduction:                                              •   Microorganisms that develop antimicrobial
                                                               resistance are sometimes referred to as
Write briefly about antimicrobial resistance                   “superbugs”.
(AMR).                                                     •   The World Health Organization (WHO) has
Body:                                                          identified AMR as one of the top ten threats to
                                                               global health.
Mention the data and causes on why antimicrobial           •   A comprehensive estimate of the global
resistance (AMR) is the leading cause of deaths                impact of antimicrobial resistance (AMR) has
worldwide.                                                     found that 1.27 million people died in 2019 as
Conclusion:                                                    a direct result of AMR, which is now a leading
                                                               cause of death worldwide, higher than
•   A multi-stakeholder       approach, involving              HIV/AIDS or malaria.
    private industry, philanthropic groups and             The analysis: Global Research on Antimicrobial
    citizen activists is needed.                           Resistance (GRAM) report:
•   Private pharmaceutical industries must take it
    upon themselves to distribute drugs in a               •   The Global Research on Antimicrobial
    responsible manner.                                        Resistance (GRAM) report used statistical
•   Philanthropic charities must fund the                      modelling to estimate deaths linked to 23
    development of new antibiotics, while citizen              pathogens     and    88     pathogen-drug
    activists must drive awareness.                            combinations.
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•   Apart from 7 lakh deaths caused directly by                with pneumonia accounting for almost 25 % of
    AMR (these would not have occurred had the                 all child deaths.
    infections       been        drug-susceptible),        •   The mortality from infectious diseases in India
    another 49.5 lakh deaths were associated with              today is 417 per 1,00,000 persons.
    AMR (a      drug-resistant    infection   was          •   The Food Safety and Standards Authority of
    implicated, but resistance itself may or may               India (FSSAI) banned the use of antibiotics in
    not have been the direct cause of death).                  agriculture and allied sector.
•   HIV/AIDS and malaria were estimated to have            •   There is no regulation in the poultry
    caused 8.6 lakh and 6.4 lakh deaths                        industry where antibiotics added to food of
    respectively in 2019.                                      animals and feed them for profit.
•   Of the 23 pathogens studied, drug resistance
                                                           Reasons for Spread of AMR:
    in six (E coli, S aureus, K pneumoniae, S
    pneumoniae, A baumannii, and P aeruginosa)
                                                           •   The misuse of antimicrobials in medicine and
    led directly to 9.29 lakh deaths and was
                                                               inappropriate use in agriculture.
    associated with 3.57 million.
                                                           •   Contamination        around       pharmaceutical
•   One pathogen-drug combination – methicillin-
                                                               manufacturing sites where untreated waste
    resistant S aureus, or MRSA – directly caused
                                                               releases large amounts of active antimicrobials
    more than 1 lakh deaths.
                                                               into the environment.
•   Resistance to two classes of antibiotics often
                                                           •   Overuse, misuse, and improper use (e.g.,
    considered the first line of defence against
                                                               taking antibiotics to treat viral diseases!) of
    severe infections – fluoroquinolones and beta-
                                                               antimicrobials.
    lactam antibiotics – accounted for more than
                                                           •   Greater access to over-the-counter antibiotic
    70% of deaths caused by AMR.
                                                               drugs in developing countries.
Antimicrobial Resistance in India:                         •   Using      broad-spectrum         antibiotics over
                                                               narrow-spectrum         antibiotics     (targeting
•   India is among the nations with the highest                specific microbes only).
    burden of bacterial infections.                        •   Dumping        of      inadequately        treated
•   India, with its combination of large population,           effluents from the pharmaceutical industry.
    rising incomes that facilitate purchase of             •   Antibiotic use in livestock feed at low doses for
    antibiotics, high burden of infectious diseases            growth promotion is industrialized countries.
    and easy over-the-counter access to                    •   Poor sanitation and hygiene that forces the
    antibiotics, is an important cause for the                 extended use of antimicrobials.
    generation of resistance genes (such genes
    help bacteria in surviving on being exposed to
    antibiotics).                                          20. Global Health Estimates (GHE) released by
•   In India, over 56,000 newborn deaths each              World Health Organization estimates that all
    year due to sepsis are caused by organisms             non-communicable diseases together accounted
    that are resistant to first line antibiotics.          for 74% of deaths globally in 2019. Discuss.
•   A study reported by ICMR (Indian Council of
                                                           Introduction:
    Medical Research) from 10 hospitals showed
    that when Covid patients acquire drug-                 Write briefly about the GHE findings released by
    resistant infections in hospitals, the                 WHO.
    mortality(death) is almost 50-60%.
                                                           Body:
•   An estimated 4,10,000 children aged five or
    less die from pneumonia in India annually;
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