Other questions in this quiz

2. Where did the oceans come from?

  • From volcanoes
  • As the atmosphere cooled below 100oC, steam condensed
  • From plants

3. What formed the early atmosphere?

  • volatile compounds and elements released from molten rock.
  • plants
  • rock

4. Which gas is present in the atmosphere in the greatest amount?

  • nitrogen
  • oxygen
  • carbon dioxide

5. Which gas makes up approximately 21% of the atmopshere?

  • oxygen
  • argon
  • hydrogen

Comments

Andreahlimb

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its good

killjoe

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k

GCSE 9

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really cool. I got 6 out of 6

Arzoo.Ali

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17th may bio revision.......all about alcoholic rats and drunk

joshbeard.8

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very good not sure all questions are entirely relevant

4 stars 

zbapson

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i got 6 out of 6 booyakashaaaaaaaaaa

greg

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nojustno

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