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So there's a simple explanation for the Great Oxidation Event. It was the cyanobacteria, pumping out unwanted oxygen, that transformed Earth's atmosphere. ... That means the cyanobacteria were busy pumping out oxygen for at least half a billion years before oxygen started appearing in the air.
Explanation:
There are these sensors in the ground that can sense the ground vibrating
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Explanation:
Its important to have resources that way the reader can go back and verify the information that is on the research paper for their own reasons