V. Choose the correct answer. 1. What should we do to electricity? A. cut B.take C. save D. waste 2. Someone’s carbon is a measurement of the amount of carbon dioxide that their activities produce. A. effect B. amount C. footprint D. energy 3. source of energy is the source that can’t be replaced after use. A. Renewable B. Natural C. Effective D. Non-renewable 4. We are looking for cheap, clean and source of energy. A. effective B. efficient C. serious D. dangerous 5. We should put on our roof for the heating and hot water. A. solar energy B. equipment C. cracks D. solar panels 6. We should use light bulbs in our homes. A. low energy B. little energy C. a bit energy D. efficient 7. In my opinion, nuclear power is not only expensive but also to our environment. A. danger B. dangerous C. rick D. disaster 8. Several governments try to the use of fossil fuels. A. reduce B. increase C. waste D. save 9. It is a good idea to use when travelling long distances. A. cars B. taxis C. private cars D. public transport 10. Wave energy is a source of energy. A. environment friendly B. environmentally friendly C. environmental friendly D. environmentally friendliness 11. Remember to the lights before going to bed. A.turn B. turn off C. turn on D. stop 12. 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 13. Biogas is and cheap for cooking and heating. A. plenty B. abundant C. serious D. expensive 14. “Why is it called a source?” – “Because it can be replaced easily and quickly.” A. effective B. specific C. renewable D. non-renewable 15. At this time next week, we a wind turbine in our garden. A. install B. installed C. will installed D. will be installing 16. Alternative sources of energy developed in the near future. A. is B. was C. has been D. will be 17. Hydro power is because dams cannot be built in certain areas. A. limited B. unlimited C. abundant D. enough 18. Fossil fuels are very common in our society but they the environment. A. renew B. provide C. waste D. pollute 19. By the middle of the 21st century, people in developing countries more renewable energy. A. uses B. will be using C. used D. have used 20. The wind, the sun, and the wave are some types of sources of energy. A. changeable B. alternative C. cheap D. costly