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The Atmosphere

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by

Jim Baker

on 16 September 2011

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Transcript of The Atmosphere

The Atmosphere The First Billion Years
Gases present:
water vapour
carbon dioxide
carbon monoxide
nitrogen
hydrogen The Next two Billion Years
As the Earth cooled the water vapour condensed to form the oceans and primative plants evolved Reduction in the amount of carbon dioxide as some dissolved in the oceans and some was removed by photosynthesis Production of oxygen by photosynthesis The Last Billion Years In the last billion years the atmosphere has developed into what is is today:
nitrogen 78.08%
oxygen 20.95%
argon 0.93%
carbon dioxide 0.04%
water vapour 0-4% Created on holiday in Salobrena Consequences
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