flipdipdodo2017 flipdipdodo2017

13-03-2019
Biology

contestada

The Earth has always had oxygen in the atmosphere.

A) True
B) False

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itsisabellakoon itsisabellakoon

13-03-2019

The correct answer is FALSE

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liyah16382 liyah16382

13-03-2019

B) false it didn’t always have oxygen

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