pinkgirlie547 pinkgirlie547

19-10-2020
Biology

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When was oxygen first produced?

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EliteApx EliteApx

19-10-2020

Answer:

2.45 billion years ago

Explanation:

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domocreeper2 domocreeper2

19-10-2020

2.45 billion years ago

Explanation:

but was discovered in 1772

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