Prttyboi13 Prttyboi13

24-05-2017
Biology

contestada

Which of the following components of the troposphere is mostly concentrated near the surface of Earth? A. carbon dioxide B. water vapor C. nitrogen D. oxygen

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angrysinklerr9 angrysinklerr9

24-05-2017

I think the answer is D

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cheer15 cheer15

24-05-2017

I also think the answer is D

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