changes in atmosphere

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1. over the years, carbon dioxide dissolved in the oceans and this was adsorbed by marine organisms. The marine organisms eventually formed rocks which are

  • neon
  • carbon dioxied
  • carbonates
  • nitrogen
  • argon
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Other questions in this quiz

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

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

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

  • volcanoes
  • oceans
  • lava and molten rock
  • land

4. the earliest atmosphere was formed by....

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

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

  • carbon dioxide
  • carbonates
  • neon
  • nitrogen
  • argon

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