Air Quality
- Created by: ~divine~
- Created on: 19-04-14 21:00
Other questions in this quiz
2. Why was it like this?
- Because it was too cold
- Because there were no humans
- Because the volcanoes were constantly releasing them
- Because it was too hot
3. Percentage of nitrogen in our atmosphere?
- 78
- 21
- 1
- 43
4. What was the Earth like around 4.5 billion years ago?
- Violent and volcanic
- Quiet and peaceful
- Cold and damp
- Hot and sunny
5. The atmosphere mainly consisted of what 4.5 billion years ago?
- Sulphur and Calcium
- Carbon dioxide and water vapour
- Gold and tin
- Oxygen and Nitrogen
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