fayehowarth8801 fayehowarth8801

05-07-2017
Biology

contestada

Before the evolution of life produced the process of photosynthesis, small amounts of oxygen were added to the earth's atmosphere by the process of

Respuesta :

08-07-2017

I think it's Photosynthesis because photosynthetic bacteria began producing excess oxygen, which added oxygen to the Earth's atmosphere.

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