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How the Earths atmosphere has changed.
The early atmosphere
%age…read more

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The change from the early atmosphere to the modern one was
caused by plants evolving and changing the gases in the air.
The change was caused by photosynthesis.…read more

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Photosynthesis
O2
CO2
Water and Food
minerals…read more

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Light
Carbon dioxide + Water Glucose + Oxygen
Suitable temperature
Some of the carbon dioxide was changed into oxygen.…read more

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Carbon dioxide changes to oxygen by photosynthesis.
Carbon dioxide got locked up when sedimentary rocks like
limestone formed.
Carbon dioxide got locked up in fossil fuels (coal, gas and oil)
Methane reacts with oxygen to form water and carbon dioxide.
Ammonia reacts with oxygen to form nitrogen and water.…read more

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