Exercise 7. Choose the word or phrase (A, B, C or D) that best fits the blank space in each sentence. 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%

Question

Accepted Answer

1. B. Non-renewable
2. A. Solar
3. D. Water
4. A. Sun
5. A. Alternative
6. C. Non-renewable

Hoàn chỉnh

1 Non-renewable energy sources can be used to create energy, generate electricity, or drive big machinery, but they are harmful to the environment.

2 Solar energy is produced by collecting sunlight and converting it into electricity.

3 When energy comes from water, we call it hydro energy.

4 The energy from the sun is renewable because we can't use it all up.

5 The sun and the wind are other alternative sources of energy.

6 Fossil fuels are non-renewable energy sources.

Exercise 7. Choose the word or phrase (A, B, C or D) that best fits the blank space in each sentence. 1. _________ energy sources can be used to create energy, generate electricity, or drive big machin...