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  • 17-12-2020
  • Biology
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how did changes in earth's atmosphere allow for the evolution of life on earth?

Respuesta :

202301544
202301544 202301544
  • 17-12-2020

Answer:

The early atmosphere was probably mostly carbon dioxide, with little or no oxygen. There were smaller proportions of water vapor, ammonia, and methane. As the Earth cooled down, most of the water vapor condensed and formed the oceans.

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