AaliyahJordan AaliyahJordan

26-05-2017
Biology

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Scientists believe that the Earth's early atmosphere lacked __________ gas because photosynthetic organisms did not yet exist.

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briannalane120 briannalane120

26-05-2017

The correct answer is oxygen

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ejhudson ejhudson

12-04-2019

the answer is C oxygen

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