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Mid-latitudinal high-pressure belts
- The heated air from the equatorial region becomes lighter, starts ascending, and after reaching higher latitudes, moves towards the polar region i.e. towards the North and South pole.
- Due to low temperatures at the higher altitude, the air cools down and becomes heavier.
- Thus heavier air descends down in both the hemispheres in the region between 25° and 35° parallels.
- This leads to the formation of high-pressure belts in both the hemispheres.
- These high-pressure belts are called mid-latitudinal high-pressure belts.
- The air in the mid-latitudinal high-pressure belts is found to be dry leading to scarce rainfall. Consequently, most of the hot deserts on the earth are found in these regions.
Concept: Pressure Belts on the Earth’s Surface - Mid-latitudinal High-pressure Belts
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