When you save energy, you not only save money, you also reduce the demand for ___________ such as coal, oil, and natural gas and that is a great way to play a part in saving the planet.
A. carbon footprint B. electricity C. fossil fuels D. biogas
12. In India, the demand for ___________ has always been more than the supply.
A. shortage B. sources C. slogan D. electricity
13. ___________ energy is produced by collecting sunlight and converting it into electricity.
A. Hydro B. Nuclear C. Solar D. Wind
14. There are many available ___________ power sources in Vietnam including sun, wind, water, etc.
A. nuclear B. hydro C. renewable D. solar
15. Laos and Cambodia have big plans for building up to 11 ___________ on the lower Mekong.
A. dams B. slogans C. energy D. coals
16. ___________ can be an excellent source of free, renewable energy for poor farmers.
A. Turbine B. Biogas C. Solar panel D. Bulb
17. The government has warned that Britain will face power ___________ in the coming winters.
A. coal B. shortages C. slogans D. energy
18. Wind power is one of the earliest ___________ sources of energy used by humankind.
A. alternative B. polluted C. harmful D. exhausted
19. Nobody can predict exactly when supplies of fossil fuels will be ___________. However, we all know they quickly reduce in quantity.
A. installed B. polluted C. harmful D. exhausted
20. Biogas can be used to ___________ natural gas in cooking, heating, or electrical generation.
A. use up B. replace C. pollute D. install
21. Solar energy can be used for ___________ electricity, and for hot water heating.
A. investing B. polluting C. generating D. installing
22. The non-renewable sources of energy that we are using are ___________ and are bound to expire one day.
A. limited B. plentiful C. abundant D. alternative
11. C. fossil fuels
12. D. electricity
13. C. Solar
14. C. renewable
15. A. dams
16. B. Biogas
17. B. shortages
18. A. alternative
19. D. exhausted
20. B. replace
21. C. generating
22. A. limited