Question

What changes occur with the increase in altitude from sea level

Answer 1

Atmospheric pressure varies from place to place and from time to time. This is due to changes in temperature and the quantity of water vapour in the air. The density of moist air is lesser than that of dry air. The density also decreases with an increase in temperature. Hence, the atmospheric pressure also decreases.

The atmospheric pressure at a place is due to the weight of the air above it. Therefore, the pressure will decrease as we go higher above the sea-level. Thus, the atmospheric pressure decreases with increasing altitude.



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Answer 2

The pressure decreases with the increase in alititude