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tomoksohara63 tomoksohara63
  • 09-03-2017
  • Biology
Answered

what led to oxygen becoming a major part of earth's atmosphere

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Pitxbullxgirl
Pitxbullxgirl Pitxbullxgirl
  • 09-03-2017

oxygen was becoming a significant component of Earth's atmosphere. At roughly the same time oxidized iron began to appear in ancient soils and bands of iron were deposited on the seafloor, a product of reactions with oxygen in the seawater.

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