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1. _________ energy sources can be used to create energy, generate electricity, or drive big machinery but they are harmful to the environment.A. Solar B. Non- renewable C. Wind D. Renewable
2. _________ energy is produced by collecting sunlight and converting it into electricity.A. Solar B. Wind C. Hydro D. Nuclear
3. When energy comes from_________, we call it hydro energy.A. nuclear B. wind C. sun D. water
4. The energy from the _________ is renewable because we can’t use it all up.A. Sun B. Gas C. Oil D. Coal
5. The sun and the wind are other _________ sources of energy.A. alternative B. limited C. harmful D. polluted
6. Fossil fuels are _________energy sources.A. solar B. renewable C. non- renewable D. wind
7. A non- renewable source of energy can be used to power machinery, but it also _________the environment.A. cleans B. pollutes C. helps D. protects
8. We will use _________energy sources like wind and solar energy to solve the problem of pollution.A. non- renewable B. renewable C. limited D. expensive
9. Hydro power is_________ because dams cannot be built in certain areas.A. limited B. unlimited C. abundant D. dangerous
10. Coal, natural gas and oil are called _________.A. solar energy B. fossil fuels C. biogas D. nuclear energy
11. The wind is a clean ______of energy.A. root B. source C. origin D. strong
12. We are trying to replace _______ energy in our daily life.A. renewable B. renew C. non-renew D. non-renewable
13. Nuclear energy is _____ but it can be very dangerous.A. plentiful B. much C. large D. lots
14. Do not use more _____ than what we need.A. wind B. food C. sunlight D. energy
15. People can convert solar power into _________A. food B. electricity C. heat D. warmth
16. There are many ______ power plants in this area.A. liquid B. land C. hydro D. water
