Other questions in this quiz

2. what brought water to Earth?

  • concentrated water vapour and comets
  • rain just fell

3. over 500 million years ago the earth was covered in

  • volcanoes
  • oceans
  • lava and molten rock
  • land

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

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

5. The Earths atmosphere today contains approximately 78% of...

  • nitrogen
  • carbonates
  • carbon dioxide
  • neon
  • argon

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