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41 votes
41 votes
Which of the following is both a natural and manmade contributor to the greenhouse effect and warming of our planet?

A. Nuclear radiation
B. Atmospheric radiation
C. Nitrogen footprint
D. Carbon cycle

User Ivan Ferrer Villa
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2 Answers

18 votes
18 votes
The answer is D. Carbon cycle
User Nirav Kotecha
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2.9k points
18 votes
18 votes
Answer: the answer is D.



I hope it helps.
User Kfa
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