The document contains 20 multiple choice questions about environmental topics and their answers. The topics covered include acid rain, habitat, environment, climate change, ecology, global warming, wildlife, Greenpeace, food chain, conservation, rainforests, the ozone layer, the greenhouse effect, toxic waste, smart homes, pollution, deforestation, genetically modified crops, greenhouse gases, endangered species, sea level rise, pesticides, fossil fuels, and extinction. Each question defines or describes a term and the answer provides the single term.

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3. QUESTION:
•This is rain that contains pollution from factories, power
stations, etc., which causes damage to forests.
ANSWER:
•Acid rain

4. QUESTION:
•This is the natural home of a plant or animal.
ANSWER:
•Habitat

5. QUESTION:
•This is the air, water and land where people, animals and
plants live.
ANSWER:
•Environment

6. QUESTION:
•The changes in the weather around the world, which result
in much higher or lower temperatures, violent storms,
floods, etc.
ANSWER:
•Climate change

7. QUESTION:
•This is the way in which plants and animals and natural
features of a place affect and depend on each other.
ANSWER:
•Ecology

8. QUESTION:
•This is general increase in the temperature of the world,
caused by pollution from factories, cars, etc.
ANSWER:
•Global warming

9. QUESTION:
•Animals and plants that grow independently of people,
usually in natural conditions.
ANSWER:
•Wildlife

10. QUESTION:
•This is an international organization dedicated to
preserving endangered species of animals, preventing
environmental abuses, and heightening environmental
awareness.
ANSWER:
•Greenpeace

11. QUESTION:
•This is the natural system in which, for example, an insect
eats a plant, a bird eats the insect, an animal eats the bird
etc. with the result that all these different forms of life
depend on each other.
ANSWER:
•Food chain

12. QUESTION:
•This is the act of preserving, guarding or protecting;
wise use.
ANSWER:
•Conservation

13. QUESTION:
•This is a tropical forest with tall trees growing very close
together, in an area where it rains a lot. It is very important
for the balance of the Earth’s ecology.
ANSWER:
•Rainforests

14. QUESTION:
•This is a layer of natural gases around the Earth. It protects
the Earth from the harmful effects of the Sun, but pollution
is causing a hole in it .
ANSWER:
•The ozone layer

15. QUESTION:
•This is the gradual warming of the Earth caused by pollution
that stops heat from leaving the Earth’s atmosphere.
ANSWER:
•The greenhouse effect

16. QUESTION:
•These are very dangerous waste materials, for example,
from nuclear power stations or chemical factories.
ANSWER:
•Toxic waste

17. QUESTION:
•This is a kind of house that provides its home owners
comfort, security, energy efficiency and convenience at all
times, regardless of whether anyone is home.
ANSWER:
•Smart home

18. QUESTION:
•This is when something is added to the environment
that is harmful or poisonous to living things.
ANSWER:
•Pollution

19. QUESTION:
•This is a situation, in which most of the trees in an area are
cut down or destroyed, resulting in great damage to the
environment.
ANSWER:
•Deforestation

20. QUESTION:
•These are crops that have had their genes changed in order
to make them more convenient to grow. Some people
believe that they may cause damage to the environment.
ANSWER:
• GM (genetically modified)

21. QUESTION:
•These are gases that form a layer around the Earth and
keep the heat in. These gases are produced naturally, but
increasing quantities of gases are being produced from cars
and factories, power plants, causing global warming.
ANSWER:
•Greenhouse gases

22. QUESTION:
•This is a type of plant or animal that is likely to stop existing
completely, for example because of hunting or pollution.
ANSWER:
•Endangered species

23. QUESTION:
•This is the natural level of the water in the world’s oceans,
which will rise if global warming continues.
ANSWER:
•Sea level

24. QUESTION:
•Chemicals that are used for killing insects or animals that
attack crops.
ANSWER:
•Pesticides

25. QUESTION:
•These are fuels, such as coal or oil. Burning these fuels
causes a lot of carbon gases to be released into the
atmosphere.
ANSWER:
•Fossil fuels

26. QUESTION:
•This is a type of an animal or plant, which no longer exists
and there are no animals or plants of that type alive.
ANSWER:
•Extinct

27. QUESTION:
•These are harmful gases or smoke, for example from cars or
factories, which damage the environment and harm people’s
health.
ANSWER:
•Fumes