----- Nội dung dịch tự động từ ảnh ----- II. Fill each blank with a word from the box. solar energy harmful carbon dioxide footprint hydro power plentiful fossil fuels parade coal renewable 6. Waterfalls can be used for the production of 7. Burning more we will pollute our environment. can be a clean and abundant energy source in Viet Nam. 8. 9. If we use more cars, the amount of in the air will continue to rise. ,we will face a serious shortage of energy. |in tropical countries. 10. If we continue to burn 11. Solar energy can be 12. We can leave smaller carbon by reducing the burning of fossil fuels. 13. In many festivals, people through streets singing and dancing. 14. The smoke from factories is to our environment. 15. Wind power is a source of energy.