https://scitechdaily.com/a-slowdown-in-earths-rotation-could-have-affected-the-oxygen-content-of-the-atmosphere/
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8/2/21 at 3:00pm
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SciTechDaily
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A long day for microbes, and the rise of oxygen on Earth. Virtually all oxygen on Earth was and is produced by photosynthesis, which was invented by tiny organisms, the cyanobacteria, when our planet was still a rather uninhabitable place. Cyanobacteria evolv…
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