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1 December, 17:19

The first life on Earth is commonly beleived to have originated 3.5 BYA (billion years ago), yet the rise of atmospheric Oxygen didn't take place until almost a billion years after this. What does this tell us about the earliest forms of life on Earth?

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  1. 1 December, 19:49
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    They were aliens Sike I'm jk they most likely evolved around not breathing in oxygen because they didn't know about it so they didn't need it
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