Physics
Physics, 18.08.2019 14:10, babiea612

How did early photosynthetic organisms change earth’s atmosphere?

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Biology, 15.07.2019 17:50, tqjb2007
Scientists believe that the earth's early atmosphere lacked gas because photosynthetic organisms did not yet exist
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Biology, 02.08.2019 03:00, omar1511
Photosynthetic organisms were present when earth was primarily anoxic. why was the appearance of cyanobacteria critical for the oxidation of the atmosphere? view available hint(s) photosynthetic organisms were present when earth was primarily anoxic. why was the appearance of cyanobacteria critical for the oxidation of the atmosphere? the early forms of photosynthesis did not produce oxygen as a waste product. cyanobacteria carry out anoxic photosynthesis. the early forms of photosynthesis did produce oxygen, but it was not enough to make a difference in the atmosphere. the early forms of photosynthesis were carried out in the water, and there was no way for the oxygen to move into the atmosphere.
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Biology, 26.09.2019 16:50, leannehounschell
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