Question

four sentences on pressure belts

Answer 1

The permanent pressure belts are not stable and shift northwards in summer and southwards in the winter due to apparent movement of sun between the tropical of cancer and tropical of Capricorn referred to as the shifting of pressure belts.within 5 degree north and south of Equator lies the equatorial low pressure belt which receives maximum heat of sun.
The belt is also referred to as doldrums since no surface movements of winds take place.

Answer 2

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These belts exist in pattern of alternate high and low pressure zones over the earth and they are four in numbers: equatorial low pressure belt, sub-tropical high pressure belt, sub-polar low pressure belt and polar high pressure belt.