Which substance in the atmosphere increased in abundance as the result of photosynthetic cyanobacteria

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asked Nov 9, 2019 22.4k views

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Mark Slater · Answer 1 · 2019-11-14T19:21:46+0000

Atmospheric oxygen increased in abundance as the result of photosynthetic cyanobacteria. These photosynthetic bacteria fed off of atmospheric carbon dioxide and produced oxygen. Ozone also increased in abundance.

Which substance in the atmosphere increased in abundance as the result of photosynthetic cyanobacteria

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