What are the 4 main greenhouse gases?

Related questions

1. Where are CFCs found?
2. Are CFCs used in refrigerators today?
3. Do refrigerators still use CFCs?
4. What did the Montreal Protocol prohibit?
5. What do chlorofluorocarbons do?
6. How were CFCs banned?
7. Which gas is used in refrigerator?
8. Do all refrigerators have CFC?
9. How is ozone harmful to us?
10. Is CFC poisonous?

Tags

1. #water
2. #dioxide
3. #major
4. #other
5. #atmosphere
6. #human
7. #synthetic
8. #naturally
9. #emitted
10. #methane
11. #chemicals
12. #greenhouse
13. #nitrous
14. #section
15. #oxide
16. #result
17. #ozone
18. #activity
19. #important
20. #present
21. #gases
22. #vapor
23. #including
24. #carbon