A) an increase in atmospheric pressure with an increase in height
B) a decrease in atmospheric pressure with an increase in height
C) an increase in wind speed with an increase in height
D) a decrease in wind speed with an increase in height
Correct Answer: B
Solution :
The force of gravity exerted by air molecules per unit area is known as atmospheric pressure. It does not remain constant because the number of air molecules decreases with increasing height. Hence, the force of gravity and consequently, atmospheric pressure, decreases with an increase in height. The correct answer is B.
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