Skip to content
Back to quiz
6. What percentage of carbon dioxide is in the atmosphere?
- 0.038%
- 0.04%
- 0.037%
- 0.039%
7. What is the approximate relative effect of methane?
8. What percentage of water vapour is in the atmosphere?
- 10%
- variable (up to 4%)
- 5%
- 20%
9. What percentage of oxygen is in the atmosphere?
10. What is the approximate relative effect of tropospheric ozone?
- 25,000
- 10,000
- 20,000
- 30,000
11. What is the approximate relative effect of oxides of nitrogen?
12. What is the approximate relative effect of carbon dioxide?