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1 vote
Which of the following choices contains two ways in which carbon enters the atmosphere?

A. Erosion and transpiration
B. Volcanic Activity and Photosynthesis
C. Human Activity and Nitrogen-Fixing Bacteria
D. Emissions from Factories and Respiration

asked
User Dr Y Wit
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1 Answer

7 votes

Answer:

d. or c. is what I think I limited your options

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