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

a. nitrogen
c. oxygen
b. hydrogen
d. carbon dioxide

User Frmdstryr
by
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2 Answers

4 votes

Answer:

c oxygen

Step-by-step explanation:

got it correct on ed

User Dushyant Singh
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5 votes
C because oxygen was a byproduct of photosynthesis and proved to be EXTREMELY important in the atmosphere.
User Ahawker
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