Other questions in this quiz

2. animals evolved using ...

  • oxygen to respire
  • oxygen to photosynthesies
  • carbon dioxide to rispire
  • carbon dioxide to photosynthesies

3. the earliest atmosphere was formed by....

  • plants decaying
  • animals breathing
  • volcano activity
  • global warming

4. The earth was a molten ball of....

  • rock and minerals
  • lava and rock
  • rock and water

5. what brought water to Earth?

  • concentrated water vapour and comets
  • rain just fell


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