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11-01-2016
History

contestada

The early atmosphere on Earth was _____.
mostly carbon dioxide
extremely cold
poisonous
full of oxygen
extremely hot

Respuesta :

HistoryGuy HistoryGuy

21-01-2016

The early atmosphere on Earth was "mostly carbon dioxide" since the levels of carbon dioxide in the atmosphere during this time were roughly 200 times the levels in the current atmosphere.

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