Human activities contribute to climate change. What is the largest known contributor?

1. burning of fossil fuels

Greenhouse gases and aerosols affect the climate by altering incoming solar radiation and
outgoing infrared radiation that are part of the earth's energy balance. Which of the following
gases contribute greatly to climate change? 1. carbon dioxide

What is this greenhouse gas that is continually produced and destroyed in the atmosphere by a
chemical reaction?
1. none

For numbers 45 to 47, consider this statement: Climate change is everyone's problem. No
agency, government, or scientist can "fix it" for us. We are all in this together. We got there
because of our lifestyle. So, our lifestyle has to change. Using the choices above, what
significant contribution can an individual make in response to climate change in terms of
Reducing waste?
1. Recycle and buy recycled products, reuse, repair, or donate carry cloth bags when shopping.

For numbers 45 to 47, consider this statement: Climate change is everyone's problem. No
agency, government, or scientist can "fix it" for us. We are all in this together. We got there
because of our lifestyle. So, our lifestyle has to change. Using the choices above, what
significant contribution can an individual make in response to climate change in terms of heating
and cooling?
1. Adjust clothing instead of the thermostat, plant deciduous trees install insulated drapes

For numbers 45 to 47, consider this statement: Climate change is everyone's problem. No
agency, government, or scientist can "fix it" for us. We are all in this together. We got there
because of our lifestyle. So, our lifestyle has to change. Using the choices above, what
significant contribution can an individual make in response to climate change in terms of
conserving electricity?
1. Get in the habit of taming lights and appliances off; switch to compact fluorescent bulbs,
make your next computer a laptop.

The following choices are human activities that result in emissions of four principal greenhouse
gases, except:
1.Reycling

What is the most effective way of combating the effects of global warming to human health?
1. change the life habit

Because of global warming, permafrost and ice are melting massively at the north and south
poles, increasing the sea level at a rate never known before. Which of the following choices
would be the worst possible outcome of this phenomenon?
1. disappearance of marine life and species
The discovery and development of the printing press led to 1. the preservation of the words of
earlier people

A desktop computer described as a PC is another type of computer. Why do people use a

laptop instead?
1. It is not designed for portability.

What should be considered in avoiding misinformation about the reliability of a Web Source?
1. the amount of information displayed

COVID-19 poses serious problems to affected countries and the Philippines is not exempted.
Which information technology is very useful in providing information and updates about this
disease?
1. internet

Which of the following choices refer to the effect of companies whose businesses are built on
digitized information?
1. None of these

The abundance of information dissemination got ahead of man. Which of the following choices
is the result of this?
1. Eventually, users no longer keep it to themselves

Mass media is a technology intended for

1. the transfer of information and ideas to the general audience

Why do you think information anxiety has set in at this time of the COVID-19 pandemic?
1. Due to man's inability to organize and manage information.

Which of the following choices is not a human need to be answered and provided by our
ecosystem?
1. the need for trekking in the mountains and forests

The changes in the ecosystem could bring varied effects to its inhabitants. Which of the
following choices has a great impact on its inhabitants?
1. all of these

Which of the following choices is not a type of biodiversity? 1. Population Diversity

Which of the following choices must be the possible cause of extinction of species?
1. unreflective and unquestioning acceptance of new technology
This is defined as the vast variety of life forms in the entire Earth. Its definition lies in the
structural and functional perspective and not as individual species.
1. Biodiversity

The following choices are threats to biodiversity, except

1. Overexploitation of Nanotechnology

The following choices are threats to biodiversity, except

1. Overexploitation of Nanotechnology

The following basic needs of living organisms are provided by the environment, except:
1. peace and quiet

Which among the following choices is not a potential risk for human consumption of GMOs?
1. improvement of desirable characteristics

Which of the following choices does not imply a side effect of a genetically modified com?
1. It can be infused with additional nutritional benefits

This is a term used for an organism created through genetic engineering.

1. genetically modified organism

Which among the following choices is mostly affected with the use of GMOs?
1. human health

The following choices are areas involved with the utilization of GMOs in non-food crops and
microorganisms, except:
1. cosmetic preservation

The following choices are the benefits of GMOs, except

1. increased use of fertilizer and pesticides

The following choices are roles of GMOs in food and agriculture, except
1. decreased growth rate

In 2010, an industrial disaster happened in the Gulf of Mexico. It was the Deepwater Horizon oil
spill and it caused the largest marine oil spill in history and a hugely expensive one at that. A
major oil spill cleanup was done where 3.19 million barrels of oil spilled off the Gulf of Mexico.
What method was used for the cleanup?
1. bioremediation

The application of nanotechnology poses different concerns to the environment. Which among
the choices is a possible benefit of nanotechnology to the environment?
1. Development of industrial benign processes and materials
There are concerns that need to be addressed before using and promoting materials derived
from nanotechnology. Which of the following choices is not a concern about nanotechnology?
1. Nanotechnology may improve medicine

Which of the following choices is a possible contribution of nanotechnology to health?

1. improves medicine

In terms of economy, what are nanotechnology's benefits?

1. Better products
2. New jobs

Who will benefit from nanotechnology?

1. promoter of the products

Who will benefit from nanotechnology?

1. promoter of the products

It is likely that nanotechnology will cause major changes in many economic areas. Which of the
following choices is a positive effect of nanotechnology?
1. Products are made possible

It refers to a scaled-up, reliable, and cost-effective manufacturing of nanoscale materials,

structures, devices, and systems.
1. nanomanufacturing

What is this assembly of nanomaterials where the tip of an atomic force microscope is "dipped"
into a chemical fluid and then utilized to "write" on a surface?
1. Dip pen lithography

What is this assembly of nanomaterials where it generates nanoscale attributes by "stamping"

or "printing" them onto a surface?
1. Nanoimprint lithography

Which of the following choices does not describe gene therapy?

1. It can allow genes to be directly inserted into a human gene or cell

The following choices are approaches to gene therapy, except

1. A gene can be directly inserted into a human gene or cell

There are essentially two types of gene therapy. Which one involves the manipulation of genes
in cells that will be helpful to the patient but will not be inherited to the next generation? 1.
somatic gene therapy
These cells have the potential to become any type of cell in the body and can become cells of
the blood, heart, bones, skin, muscles, brain, and other cells.
1. stem cell

What are these cells that exist throughout the body after embryonic development and are found
inside different types of tissues?
1. somatic stem cell

What is this type of gene therapy that involves the genetic modification of germ cells or the
origin cells that will pass the change on to the next generation?
1. germ-line therapy

A gene cannot be directly inserted into a human gene or cell. What does it require for it to be
inserted into another gene? 1. carrier or vector

What are these cells that are derived from a 4- or 5-day-old human embryo that is in the
blastocyst phase of development?
1. embryonic stem cell

The following choices are natural causes of climate change, except

1. greenhouse gases

Human activities contribute to climate change. What is the largest known contributor?
1. burning of fossil fuels