Social Science: Class 10
Social Science: Class 10
Class 10
    Social Science
Geography|Minerals and Energy
           Resources
        Crafted with love
          By Digraj Singh Rajput
                                                           Geography|Minerals and Energy Resources
                                       Minerals and Energy Resources
                             Indispensable part of our lives. Minerals are defined as a homogenous, naturally occurring
What is a Mineral?
                             substance with a definable internal structure.
               ●     Occur in the cracks, crevices, faults or joints called veins and lodes. For
                     example: copper, tin and zinc.
               ●     Occur in beds or layers as a result of deposition, accumulation and
                     concentration in horizontal strata. For example: coal and iron ore.
               ●     Formed by decomposition of surface rocks, and the removal of soluble
                     constituents, leaving a residual mass of weathered material containing ores.
                     (Minerals may also occur as alluvial deposits, called placer deposits For
                     example: Gold, silver and platinum.
               ●     Ocean waters contain traces of Minerals. e.g. Common Salt
        India have fairly rich and varied mineral resources, but these are unevenly distributed
                                                              Geography|Minerals and Energy Resources
  Classification and distribution       Peninsular rocks, Western ghats and Eastern ghats, Rajasthan
            of minerals
  Ferrous      ●    Iron : backbone of industrial development. Magnetite is the finest iron ore with a very high content
                    of iron up to 70 per cent, Haematite ore is the most important industrial iron ore, content iron
                    between 50-60 per cent Major Iron ore belts found in India are Odisha-Jharkhand belt,
                    Durg-Bastar-Chandrapur belt, ballari-Chitradurga-Chikmagalur Tumkur belt, and Maharashtra-Goa
                    belt.
               ●    Manganese : Manganese is used for manufacturing of steel, ferro-manganese alloy, bleaching
                    powder, insecticides and paints.
Non Ferrous    ●    Copper : Used in electrical cables, electronics and chemical industries. The Balaghat mines in Madhya
                    Pradesh, Khetri mines in Rajasthan and Singhbhum district of Jharkhand are leading producers of
                    copper.
               ●    Bauxite : Aluminium is formed from Bauxite. Aluminium combines the strength of metals such as iron,
                    with extreme lightness and also with good conductivity and great malleability. Bauxite is mainly found
                    in Amarkantak plateau, Maikal hills and the plateau region of Bilaspur-Katni. It is majorly found in
                    Odisha.
                                                         Geography|Minerals and Energy Resources
Which one of the following is the highest 'bauxite' producing state of India?
a. Maharashtra
b. Jharkhand
c. Gujarat
d.    Odisha
                                                             Geography|Minerals and Energy Resources
Non Metallic     ●    Mica : Most indispensable minerals used in electric and electronic industries. Mica
                      deposits are found in the Chota Nagpur plateau, Koderma Gaya - Hazaribagh belt of
                      Jharkhand, Ajmer in Rajasthan and Andhra Pradesh.
Rock mineral     ●   Limestone : Found in association with the rocks composed of calcium carbonates or calcium
                     and magnesium carbonates. Used as basic raw material for the cement industry and
                     smelting industry.
Conventional Sources
                     ●   Coal is an extremely important source of energy. It is used for power generation, to supply energy
                         to industry as well as for domestic needs.
  Coal               ●   Coal is found in variety of forms. Decaying plants in swamps produce peat. Lignite is a low grade
                         brown coal which is soft with high moisture content. Bituminous is the most popular coal in
                         commercial use. Anthracite is the highest quality hard coal.
                     ●   Gondwana coal [200 Million years old] and tertiary coal [55 million year old] are the classification
                         on the basis of age.
                     ●   Petroleum or Mineral oil provides fuel for heat and lighting, lubricants for machinery and raw
 Petroleum               materials for various manufacturing industries.
                     ●   Petroleum refineries acts as a nodal industry.
                     ●   Occurrence of petroleum - anticlines and fault traps.
                     ●   Mumbai High, Gujarat and Assam are major petroleum production areas in India.
                                                            Geography|Minerals and Energy Resources
                ●    Natural Gas is found with petroleum deposits and is released when crude oil is
                     brought to the surface. It is used as fuel in power sector to generate electricity,
Natural Gas          in chemical, petrochemical and fertilizer industries, as transport fuel and as
                     cooking fuel.
                ●    Krishna- Godavari basin, the Gulf of Cambay Andaman and Nicobar islands.
                     Hazira-Vijaipur - Jagdishpur cross country gas pipeline
  Solar Energy      ●       India has enormous possibilities of tapping solar energy. Photovoltaic technology converts
                            sunlight directly into electricity.
                    ●       It will minimise the dependence of rural household on firewood and dung cakes.
  Wind Power        ●       Wind farms are located in Tamil Nadu, Andhra Pradesh, Karnataka,
                            Rajasthan, Gujarat, Kerala, Maharashtra and Lakshadweep.
    Bio Gas         ●       Shrubs, farm waste, animal and human waste are used to produce biogas.
                    ●       Gobar gas plants and twin benefits.
                    ➔       Energy to the farmers
                    ➔       Improved quality of manure.
                                                             Geography|Minerals and Energy Resources
                  ●   Oceanic tides can be used to generate electricity. The Gulf of Khambhat, the Gulf of Kachchh in
Tidal energy
                      Gujarat on the western coast and Gangetic delta in Sunderban regions of West Bengal provide
                      ideal conditions for utilising tidal energy.
Geothermal energy         ●   Refers to the heat and electricity produced by using the heat from the
                              interior of the Earth.
                          ●   The Parvati valley near manikaran in HP and Puga valley Ladakh
b. Non-Ferrous - Nickel
    Mineral : Minerals is a homogeneous, naturally occurring        Placer deposits : Placer deposits are minerals found in the sand
  substance found in the crust of the earth, that has a definable   of valley floors or at the base of hills, where they have been
                        internal structure.                         naturally deposited by water. These minerals, like gold, silver,
                                                                    tin, and platinum, don't corrode easily in water.
  Rat Hole Mining: It is a type of Mining that is done by digging   Ferrous minerals : Ferrous minerals are metals that contain iron
   long, narrow tunnels to reach the coal deposits under the        and make up about three-fourths of the total value of metallic
        ground. It is practiced in jowai and cherrapunji.           mineral production. They are important for building the
                                                                    metallurgical (metal-processing) industries. India produces
    Ore : An ore is a natural material that contains a valuable     enough ferrous minerals to meet its needs and also exports a
mineral mixed with other substances. The mineral is present in a    large amount. Example: Iron and Manganese.
 high enough amount that it is worth extracting for commercial
use. How easy or difficult it is to mine depends on the structure   Magnetite : Magnetite is the best quality iron ore, containing
               of the ore and how it was formed.                    up to 70% iron, and has strong magnetic properties, making it
                                                                    useful in the electrical industry.
Veins and lodes : Veins and lodes are places where minerals are
found in cracks or openings in rocks. Veins are smaller, and        Haematite : Hematite, though slightly lower in iron content
lodes are larger. These minerals form when hot, liquid, or gas      (50-60%), is the most commonly used iron ore in industry due to
minerals move upward through the cracks and harden as they          its abundance. Both are key resources for industrial
cool. Important metals like tin, copper, zinc, and lead come from   development.
veins and lodes.
                                  Key Words                         Geography|Minerals and Energy Resources
Minerals occur in different forms depending on how they are formed and the type of rocks they are associated with. Here
are the main ways minerals occur.
  ● In the Form of Veins and Loads : In Cracks of Igneous and Metamorphic Rocks minerals can be found in cracks or
       gaps in rocks. When hot, melted minerals rise through these cracks and cool down, they harden into solid minerals.
       Examples are tin, copper, zinc, and lead.
  ● In the Form of Beds and Layers : In Layers of Sedimentary Rocks some minerals form in layers in sedimentary rocks
       over long periods of time. They occur in horizontal strata, examples include coal and iron ore. Other minerals, like
       gypsum and salt, form when water evaporates in dry areas.
  ● In the Form of residual mass of weathered material : When rocks on the surface break down over time, some parts
       are washed away, leaving the residual part of weathered material behind. Bauxite, used to make aluminum, is
       formed this way.
  ● In the Form of Placer deposits: Minerals like gold, silver, tin, and platinum can be found in the sand of riverbeds or at
       the base of hills. These minerals don’t easily wear away in water.
  ● In Oceans: Oceans have a lot of minerals, but they are usually spread out. However, some useful minerals like salt,
       magnesium, and bromine are taken from ocean water. The ocean floor also has manganese nodules.
                   MuST Know Question           Geography|Minerals and Energy Resources
What are the impacts of mining on the health of the miners and the environment?
●   Health of Miners: Miners are vulnerable to pulmonary diseases due to inhaling dust
    and toxic fumes, and they face risks like collapsing mine roofs, floods, and fires.
●   Environmental Impact: Mining contaminates water sources, degrades land, and
    increases pollution in streams and rivers due to the dumping of waste and slurry.
●   Need for Regulation: Stricter safety measures and environmental laws are essential to
    prevent mining from causing severe harm to both miners and the environment.
                                   MuST Know Question                    Geography|Minerals and Energy Resources
Why is Conservation of mineral resources essential? Explain any three methods to conserve them.
Conservation of mineral resources is essential because these resources are finite, non-renewable, and take millions of years to form.
As we continue to consume them at a rapid pace, the depletion of these resources could severely impact industries and agriculture,
which are highly dependent on them.
i) Technological Improvements: Advancing technology allows for the use of low-grade ores at lower costs, which means more efficient
extraction processes and better utilization of available mineral resources.
ii) Recycling of Metals: By recycling and reusing metals, the need for fresh extraction is reduced, conserving existing mineral deposits.
iii) Use of Substitutes: Finding alternative materials to replace minerals in certain applications reduces the pressure on finite
resources. For example, using synthetic materials in place of metal components where possible helps conserve minerals.
                             MuST Know Question              Geography|Minerals and Energy Resources
There is a pressing need to use non-conventional energy resources for the following reasons:
i) Limited Fossil Fuels: India relies heavily on fossil fuels like coal, oil, and gas, but these
resources are finite and could face shortages, threatening the country’s energy security.
ii) Rising Costs: The increasing prices of oil and gas make it expensive to rely on these fuels,
which can harm the economy by raising production and transportation costs.
iii) Environmental Impact: Fossil fuel use causes significant environmental problems, such as
pollution and climate change. Shifting to renewable energy sources like solar, wind, and
biomass helps reduce this damage.
                             MuST Know Question              Geography|Minerals and Energy Resources
           Why is energy conservation important for India, and what measures can be taken to
                                          conserve energy?
Energy conservation is crucial for India because energy is essential for all sectors of the economy, including
agriculture, industry, transport, commercial, and domestic uses.
To conserve energy, India must focus on:
Promoting energy conservation: This includes reducing unnecessary energy use by switching off electrical
devices when not in use, using energy-efficient appliances, and adopting power-saving technologies.
Increasing the use of renewable energy sources: Shifting towards non-conventional energy sources like solar,
wind, and biomass can reduce dependence on fossil fuels and help achieve long-term energy security.
Encouraging public transport: Citizens can contribute by using public transport instead of personal vehicles to
reduce fuel consumption and promote efficient energy use.
                          MuST Know Question          Geography|Minerals and Energy Resources
How is energy a basic requirement for economic development ? Explain with examples.
Energy is a basic requirement for economic development because every part of the economy depends on it.
 ● Agriculture: Energy is needed to power machines like tractors and pumps for irrigation, which help
     increase agricultural production.
 ● Industry: Factories and manufacturing units need a lot of energy to run machines and produce goods.
     Without energy, industrial activities would come to a halt, slowing economic growth.
 ● Transport: The movement of goods and people, essential for trade and daily activities, relies on
     energy in the form of fuel for vehicles like cars, trucks, and trains.
 ● Commercial and Domestic Use: Businesses and households need energy for lighting, heating, cooling,
     and running electrical appliances. This supports daily life and economic activities.
 ● Sustainable Growth: As energy demand rises, using renewable energy sources and conserving energy
     are necessary to support long-term economic development without depleting resources.
                  Previous year questions 2020
                                                   Geography|Minerals and Energy Resources
"Minerals are an indispensable part of our lives." Support this statement with examples.              3
                                                                   CBSE Board Paper 2020 - Set [32/5/1]
"A concerted effort has to be made in order to use mineral resources in a planned and sustainable
manner." Suggest and explain any three measures.                                    3
                  Previous year questions 2023
                                                  Geography|Minerals and Energy Resources
"Energy is required for all activities." Explain the statement with examples.                           3
                     Previous year questions 2023
                                                           Geography|Minerals and Energy Resources
35. Read the given case and answer the questions that follow:                                                    4
CONSERVATION OF ENERGY RESOURCES
Energy is a basic requirement for economic development. Every sector of the national economy agriculture,
industry, transport, commercial and domestic needs inputs of energy. The economic development plans
implemented since independence necessarily required increasing amounts of energy to remain operational. As
a result, consumption of energy in all forms has been steadily rising all over the country. In this background,
there is an urgent need to develop a sustainable path of energy development. Promotion of energy
conservation and increased use of renewable energy sources are the twin planks of sustainable energy. India is
presently one of the least energy efficient countries in the world. We have to adopt a cautious approach for the
judicious use of our limited energy resources. For example, as concerned citizens we can do our bit by using
public transport systems instead of individual vehicles; switching off electricity when not in use, using
power-saving devices and using non- conventional sources of energy. At last "Energy Saved is energy produced"
(35.1) Why is sustainable energy a key to sustainable development ?                                             1
(35.2) Why is consumption of energy rising in all over India?                                                   1
(35.3) Explain 'Energy saved is energy produced'.                                                               2
                  Previous year questions 2024
                                                   Geography|Minerals and Energy Resources
Choose the correct option for the following States' share (in percentage) in the production of
'manganese' in India from the highest to the lowest order.                                            1
(A) Madhya Pradesh, Maharashtra, Karnataka, Odisha
(B) Madhya Pradesh, Maharashtra, Odisha, Karnataka
(C) Maharashtra, Madhya Pradesh, Karnataka, Odisha
(D) Maharashtra, Odisha, Madhya Pradesh, Karnataka
                     Previous year questions 2024
                                                       Geography|Minerals and Energy Resources
                                                    Options:
(B) Bauxite
                                                                    I             II             III           IV
(C) Manganese                                       (A)             b             d              c             a
                                                    (B)             d             c              b             a
(D) Platinum                                        (C)             a             b              d             c
                                                    (D)             c             d              b             a
                  Previous year questions 2024
                                                    Geography|Minerals and Energy Resources
How is energy a basic requirement for economic development ? Explain with examples.                   5
                 Previous year questions 2024
                                                 Geography|Minerals and Energy Resources
"Minerals occur in igneous and metamorphic rocks." Explain the statement with example. 2
"The ocean waters contain vast quantities of minerais." Explain the statement with example.        2
                                                                 CBSE Board Paper 2024 - Set [32/4/1]
How is energy a basic requirement for economic development of a country ? Explain with
examples.                                                                                             2