Q.

The height above sea level is called [[1]].


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Detailed Solution

The height above sea level is called altitude.
The atmospheric pressure at a place depends on its altitude, i.e., height above sea level, which decreases as we go up. Since the atmospheric pressure at a place is the pressure exerted by the weight of air above that place, as we go up, the length of the air column above us decreases. Thich means the weight decreases, so the atmospheric pressure is lower at higher altitudes.
 
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