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Descripción
Mapa Mental por maya jasmine violet , actualizado hace más de 1 año
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Creado por maya jasmine violet
hace más de 9 años
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the atmosphere
- the earth's surface used to be molten, and very hot. this means any atmosphere would have "boiled
away" into space
- eventually things cooled down enough for a thin crust to form over the earth.
- the early atmosphere would have only been made up of carbon dioxide, water vapour and
nitrogen
- the ocean were formed when the water vapour condensed, as the earth was cooling.
- the ocean were formed when the water vapour condensed, as the earth was cooling.
- the early atmosphere would have only been made up of carbon dioxide, water vapour and
nitrogen
- eventually things cooled down enough for a thin crust to form over the earth.
- green plants started to grow and flourish due to the vast amounts of carbon dioxide in the atmosphere
- a lot of the carbon dioxide was dissolved into oceans
- the rest was taken in by the plants which let out oxygen in a process called photosynthesis.
- when the plants died they got buried under layers of sediment. the carbon they contained got locked up and turned into fossil fuels.
- when the plants died they got buried under layers of sediment. the carbon they contained got locked up and turned into fossil fuels.
- the rest was taken in by the plants which let out oxygen in a process called photosynthesis.
- a lot of the carbon dioxide was dissolved into oceans
- the build up of oxygen in the atmosphere killed of many of the organisms, but allowed more complex ones to evolve
- there is virtually no carbon dioxide left in the atmosphere now
- there is virtually no carbon dioxide left in the atmosphere now
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