Question 4 of 10
What percentage of the air is found in the bottom two layers of the Earth's
...
Biology, 07.06.2021 06:40 michaelchavez6959127
Question 4 of 10
What percentage of the air is found in the bottom two layers of the Earth's
atmosphere?
A. 1%
B. 29%
C. 99%
D. 49%
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Answers: 3
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