How does the atmospheric pressure change with altitude?
altitude increases, pressure decreases
altitude decreases, pressure decreases
altitude is independent of pressure
altitude increases, pressure increases
A
altitude decreases, pressure decreases
B
altitude is independent of pressure
C
altitude increases, pressure decreases
D
altitude increases, pressure increases
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Solution
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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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