Q. 1. Give reasons:
(1) Air pressure decreases with increasing
altitude.
(2) Pressure belts oscillate.
Q. 2. Give short answers to the following
questions.
(1) What effect does temperature have on
air pressure?
(2) Why is the subpolar low pressure belt
formed?
Q. 3. Write notes on:
(1) Mid-latitudinal high pressure belts
(2) Horizontal distribution of air pressure.
Answers
Explanation:
1.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.
2.Pressure belts oscillate with the clear progress of the sun. The pressure belt shift southwards in winter and northwards in summer. The belt can oscillate in different forms that provide the different winds
Q2
1.Air pressure is influenced by temperature because, as the air is warmed, the molecules start moving around more, so they bump into each other more often and create more pressure. But, air pressure also affects temperature - the more those molecules bump into each other, the more heat they generate
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Answer:
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