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In the carbon cycle, the role of fossil-fuel formation is to:

a. store excess carbon underground.
b. build up the amount of carbon dioxide in the air.
c. preserve organisms that are extinct.
d. keep populations of plants under control.

User Tal Ohana
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1 Answer

4 votes

Answer:

b

Step-by-step explanation:

because in the carbon cylce the role of fossil fuel is to

User Matt Klein
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