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16 votes
16 votes
How do humans

contribute to the level of
carbon dioxide in the
atmosphere?
A. the growing of bone structures
B. the burning of fossil fuels this
C. during photosynthesis

User Just James
by
2.8k points

1 Answer

12 votes
12 votes

Answer: B

Explanation: Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere.

User Tenmiles
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2.6k points