Question
What happens to atmospheric pressure with an increase in altitude?
Answer: Option A
Answer: (a)
In most circumstances, atmospheric pressure is closely approximated by the hydrostatic pressure caused by the mass of air above the measurement point. Low-pressure areas have a less atmospheric mass above their location, whereas high-pressure areas have more atmospheric mass above their location.
Likewise, as elevation increases, there is less overlying atmospheric mass, so that pressure decreases with increasing elevation.
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Answer: (a)
In most circumstances, atmospheric pressure is closely approximated by the hydrostatic pressure caused by the mass of air above the measurement point. Low-pressure areas have a less atmospheric mass above their location, whereas high-pressure areas have more atmospheric mass above their location.
Likewise, as elevation increases, there is less overlying atmospheric mass, so that pressure decreases with increasing elevation.
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