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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
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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 Rafael Tavares
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2 Answers

5 votes
The answer is D. Carbon cycle
User Yohan Liyanage
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4.6k points
4 votes
Answer: the answer is D.



I hope it helps.
User Paul Kienitz
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