***Chọn câu trả lời chính xác Question 1. A. chemical B. footprint C. sustain D. necessary Question 2. A. reduce B. battery C. hydro D. station Question 3. A. adsorb B. efficient C. building D. pollute Question 4. A. damage B. balance C. replace D. greenhouse Question 5. A. generate B. landscape C. layer D. machine Question 6. A. natural B. prevention C. habitat D. pressure Question 7. A. scientist B. recycle C. survive D. resource Question 8. A. solar B. violation C. temperature D. generator Question 9. A. transportation B. conservation C. emission D. devastation Question 10. A. useful B. alternate C. atmosphere D. communication Question 11. A. panel B. every C. convenience D. power Question 12. A. biogas B. renewable C. plentiful D. relative Question 13. A. excellent B. amount C. alternative D. increase Question 14. A. reduce B. hardship C. people D. money Question 15. A. decorate B. delicious C. decisive D. construction