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4 votes
What component of Earth’s atmosphere exists entirely as a result of photosynthesis?

oxygen gas
water vapor
nitrogen gas
carbon dioxide gas

asked
User Atos
by
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2 Answers

4 votes

Answer:

A. Oxygen Gas

Step-by-step explanation:

It's right on edge 2020

answered
User Lumpidu
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8.1k points
6 votes

the answer is oxygen gas

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User Sesame
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8.2k points

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