The evolution of the atmosphere

plusterianne
Mind Map by plusterianne, updated more than 1 year ago
plusterianne
Created by plusterianne almost 6 years ago
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Science (C1) Mind Map on The evolution of the atmosphere, created by plusterianne on 03/20/2014.
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The evolution of the atmosphere
1 Volcanoes gave out gases
1.1 Things cooled down a bit & a thin crust is formed but volcanoes gave out lots of gas. Including carbon dioxide, water vapour and nitrogen
1.2 According to this theory the early atmosphere was formed with mostly co2 and water vapour wit hno oxygen.
1.3 The oceans formed when the water vapour condensed into oceans when the earth cooled.
1.4 Earths surface was originally molten for millions of years. it was so hot that any atmosphere just boiled away into space.
2 Complex organisms evolved
2.1 Virtually no co2 left now
2.2 Built up of oxygen in the atmosphere killed off some early organisms.
3 Enter text here
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