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Name 5 major events occured during the precambrian era?

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1) the solar system and light formed.
2) Earth's formation, approximately 4,5 billion years ago.
3)
the creation of the atmosphere through volcanic out gassing; Earth's primitive atmosphere made a transition to an oxygen rich atmosphere.
4)
formation of landmass and oceans.
5) the creation of life; there is evidence of the earliest appearance of eukaryotes.
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