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mestny [16]
3 years ago
13

Explain how the percentages of nitrogen, oxygen and carbon dioxide in the Earth’s atmosphere today have changed from the Earth’s

early atmosphere.
Biology
1 answer:
Degger [83]3 years ago
4 0

Explanation:

The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.

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