z1hartinaAman z1hartinaAman

16-10-2016
Biology

contestada

Photosynthetic cyanobacteria created what important component of the atmosphere?
a. nitrogen
c. oxygen
b. hydrogen
d. carbon dioxide

Respuesta :

maxbeast maxbeast

16-10-2016

C because oxygen was a byproduct of photosynthesis and proved to be EXTREMELY important in the atmosphere.

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osvrodrio2405 osvrodrio2405

11-01-2021

Answer:

c oxygen

Explanation:

got it correct on ed

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