Question

write 4 points on pressure belt and planetary winds

Answer 1

There are a total of 7 Pressure Belts on the surface of Earth viz., Equatorial Low, 2 Sub-Tropical Highs, 2 Sub-Polar Low, and 2 Polar Highs. All others exist in corresponding  Northern and Southern Hemisphere except the Equatorial Low Pressure Belt.

1) The Equatorial Low Pressure Belt extends from 0 to 5° North and South of the Equator and is the most hot portion of earth as the rays of sun have the highest intensity in this zone.

2) Sub-Tropical Pressure Belts or the Horse Latitude exist in 30° North and South of the Equator and here the upward moving equatorial air currents descend down.

3) Sub-Polar Low Pressure belts are found between 60° and 70° in both the hemispheres.

4) Polar High Pressure Belts or Polar Highs exist in between 70° and 90° North and South and here the temperatures are consistently very low. So, the permanent ice caps are present here.


Planetary Winds are similar movement of air that appear with high variations on worldwide scale. They blow in the same direction throughout the year. They are uniformly distributed on the entire surface of earth. They are, thus, prevailing winds or permanent winds viz., Trade Winds, the Westerlies and the Polar winds.

Answer 2

Answer:

They are Equatorial Low, the two Sub-Tropical Highs, the two Sub-Polar Low, and the two Polar Highs. ... 4) Polar High Pressure Belts - At the North and South poles, between 70° and 90° North and South, the temperatures are always extremely low. The cold descending air gives rise to high pressures over the poles