Change in atmosphere

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  • Created by: Anu Rai
  • Created on: 01-05-13 17:43
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  • Changing atmosphere
    • Earth cooled & water vapour condensed
      • Forms oceans & carbon dioxide dissolved in there
        • We know this because there are shells in the sea that could only be made with Carbon Dioxide
          • Shells fell and became sediment
    • Photosynthesis
      • 1 billion years ago organism could Photosynthesise
        • Carbon Dioxide was removed quicker.
          • MORE OXYGEN ADDED. YEAY!

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