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

OOOO
oxygen gas
water vapor
nitrogen gas
carbon dioxide gas

1 Answer

3 votes

Answer:

Oxygen gas

Step-by-step explanation:

Photosynthesis is where carbon dioxide, water, and sunlight are turned into oxygen, and glucose (energy for the plant). The only gas released is oxygen.

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User Mohammed Yaser
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