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25-08-2022
Geography

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which event was most directly responsible for increasing oxygen in earth’s atmosphere?

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temmycruise1234 temmycruise1234

25-08-2022

Answer:

The appearance of free oxygen in the Earth's atmosphere led to the Great Oxidation Event. This was triggered by cyanobacteria producing oxygen which developed into multicellular forms as early as 2.3 billion years ago.

Explanation:

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