Science
The Rise Of Oxygen On Early Earth Linked To Changing Daylength – Forbes
A slowdown in the Earth’s rotation between 2.4 to 0.6 billion years ago could have affected the oxygen content of the atmosphere….
A stromatolite. Such fossilized microbial mats are the oldest sign of life on Earth.
D.Bressan
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…
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