1. The melting of the earth’s ice masses has increased _______ the burning of fossil fuels.

A. since B. despite C. because D. due to

2. Hundreds of buildings were destroyed when the earthquake _______ the city.

A. buried B. shook C. scattered D. collapsed

3. We should not only ____ more trees but also put much more effort into protecting existing forests.

A. plant B. reduce C. stop D. cut down

4. Lead and aluminium are common ____________ that can be found in drinking water.

A. contamination B. contaminated C. contaminates D. contaminants

5. People all over the world are working to help save ____________ animals from extinction.

A. danger B. endangered C. dangerous D. dangerously

6. Around 7 million ____________ of plants and animals exist on the Earth. 

A. means B. classes C. styles D. species

7. After a severe storm, there is often_______along the shore that will need to be removed.

A. ash

B. debris

C. lava

D. junk

8. _________  plastic takes so long to break down, it pollutes the land and water.

A. Eventhough

B. While

C. Since

D. Because of

9. We should ______ our carbon footprint to protect the environment.

A. pollute B. protect C. reduce D. endanger

10. You should turn off devices that you are not using to ______ electricity.

A. save B. reuse C. release D. turn

11. "Carbon footprint" is the amount of carbon dioxide that we ______ into the environment. 

A. stop B. plant C. recycle D. release

12. People shouldn't throw away single-use products but ______ them.

A. endanger B. recycle C. protect D. pollute

13. The people in my village often ______ down trees to build houses.

A. cut B. pollute C. avoid D. Release

14. You should drive carefully ______ the road is slippery. 

A. because B. while C. although D. After

15. We hope more people join our ______ programme.

A. environment B. environmental C. environmentalist D. environmentally