Choose the correct answers.
16. What should we do to________ electricity?
a. cut b. take c. save d. waste
17. Someone's carbon_______ is a measurement of the amount of carbon dioxide that their activities produce.
a. effect b. amount c. footprint d. energy
18. _____ source of energy is the source that can't be replaced after use.
a. Renewable b. Natural c. Effective d. Non-renewable
19. We are looking for cheap, clean and _____ sources of energy.
a. effective b. efficient c. serious dangerous
20. We should put______ on our roof for the haeting and hot water.
a. solar energy b. equipment c. cracks d. solar panels
21. We should use______ light bulbs in our homes.
a. low energy b. little energy c. a bit energy d. efficient
22. In my opinion, nuclear power is not only expensive but also_____ to our environment.
a. danger b. dangerous c. risk d. disaster
23. Several governments try to _____ the use of fossil fuels.
a. reduce b. increase c. waste d. save
24. It is a good idea to use_____ when travelling long distances.
a. cars b. taxis c. private cars d. public transport
25. Wave energy is a sorce of______ energy.
a. environment friendly b. environmentallt friendly c. environmental friendly d. environmentally friendliness
26. Remember to_____ the lights before going to bed.
a. turn b. turn off c. turn on d. stop
27. A hydropower station_____ in the North of the country next year.
a. was built b. were built c. will be built d. has been built
28. Biogas is_____ and cheap for cooking and heating.
a. plenty b. abundant c. serious d. expensive
29. ''Why is it called a _____ souce?'' - ''Because it can be replaced easily and quickly.''
a. effective b. specific c. renewable d. non-renewable
30. At this time next week, we_____ a wind turbin in our garden.
a. install b. installed c. will installed d. will be installing
31. Alternative sources of energy______ developed in the near future.
a. is b. was c. has been d. will be
32. Hydro power is_____ because dams cannot be built in certtain areas.
a. limited b. unlimited c. abundant d. enough
33. Fossil fuels are very common in our society but they_____ the environment.
a. renew b. provide c. waste d. pollute
34. By the middle of the 21stcentury, people in developing countries_____ more renewable energy.
a. uses b. will be using c. used d. have used
35. The wind, the sun, and the wave are some types of______ sources of energy.
a. changeable b. alternative c. cheap d. costly
