Answer:
Early cyanobacteria in stromatolites are thought to be responsible for increasing the amount of oxygen in the primeval Earth's atmosphere through their continuing photosynthesis. They were the first known organisms to photosynthesize and produce free oxygen.
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Answer:
6O2 + C6H12O6 --> 6CO2 + 6H2O + ATP energy
and the photosynthesis reaction takes the opposite only it's input is sunlight energy
without either we are all dead
they are complimentary
Explanation:
