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What component of Earth's atmosphere exists entirely as a result of photosynthesis?

A. Oxygen gas
B. Water vapor
C. Nitrogen gas
D. Carbon dioxide gas


Sagot :

Final answer:

Carbon dioxide gas is present in Earth's atmosphere due to photosynthesis.


Explanation:

Carbon dioxide gas exists entirely as a result of photosynthesis in Earth's atmosphere. During photosynthesis, plants take in carbon dioxide from the air and convert it into glucose, releasing oxygen as a byproduct.


Learn more about photosynthesis in Earth's atmosphere here:

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