atomapshere

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  • Created by: pipedgar
  • Created on: 04-04-14 17:29
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  • atmosphere
    • the first atomosphere
      • formed by gasses produced from volcanoes
      • large amounts of co2 and water vapour
      • no oxygen
      • very hot and no oceans
    • adding oxygen
      • oceans are formed
        • life begins and photosynthesis occurs
          • oxygen builds up in oceans
            • builds up in atomasphere
    • removing co2
      • dissolved into oceans
        • marine organisms used the co2 to make shells
          • dead shells fell into sea bed and became part of the sediment
    • changing atmosphere
      • 78% nitrogen
      • why?
        • fossil fuel burning realseas co2 and sulphar dioxide
        • cows release methane
        • deofestaton adds co2
          • fewer trees to remove co2
  • formed sedimentary rock
    • dead shells fell into sea bed and became part of the sediment
  • 21% oxygen
    • changing atmosphere
      • 78% nitrogen
      • why?
        • fossil fuel burning realseas co2 and sulphar dioxide
        • cows release methane
        • deofestaton adds co2
          • fewer trees to remove co2
  • 0.9% agron

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