Structure and Composition of the Atmosphere Answers
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As altitude increases, what happens to air pressure?
A
It fluctuates.B
It increases.C
It decreases.D
It stays the same.22
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The image shows a representation of mountains of various heights, numbered 1, 2, and 3. The plain is labeled number 4.
A
1B
2C
3D
423
Which gas in Earth’s atmosphere helps living things make proteins?
A
oxygenB
nitrogenC
water vaporD
carbon dioxideDid you find these answers helpful?
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