ka9ttydeaumazaluz ka9ttydeaumazaluz

12-01-2017
Biology

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How did an oxygen-rich atmosphere develop from a carbon dioxide-rich atmosphere? multiple choice through photosynthesis by cyanobacteria through asteroid impacts through volcanic eruptions

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kaivalyashenoy kaivalyashenoy

12-01-2017

through photosynthesis by cyanobacteria and plants containing chlorophyll pigment
this is the only natural process which releases the life supporting gas oxygen into the atmosphere

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