Which step caused an aerobic atmosphere during the history of Earth ?
2 answers:
origin of photosynthetic prokaryotes ^_^
Photosynthetic prokaryotes caused aerobic atmosphere during the history of Earth.
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It gives women the right to vote
He was a famous writer who opposed the previous government.
Should be the second answer (b)
Answer:
the course of history
Explanation: hope this will help :)
