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Question

How does the atmospheric pressure change with altitude?

A
altitude increases, pressure decreases
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B
altitude decreases, pressure decreases
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C
altitude increases, pressure increases
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D
altitude is independent of pressure
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Solution

The correct option is A altitude increases, pressure decreases
Pressure with Height: pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.
So, as we go up at higher altitude the pressure decreases.

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