Question

At poles, how is the direction of Polar winds.
A) Air from the Polar region towards the $60^\circ $ latitude belt.
B) Air from the $60^\circ $ latitude belt moves in towards the Polar region.
C) Air from the Polar region moves in towards the equatorial region.
D) Air from the equatorial region moves in towards the Polar region.

Answer 1

Hint: The warm air has air molecules at high energy and the air molecules are vibrating at its position also the warm air is lighter in weight on the other hand the cold air has air molecules which has air molecules closer to each other and also it weighs more than the warm air.

Complete step by step solution:
It is asked in the problem about the direction of Polar winds. The winds at the poles are about $60^\circ $ colder than the winds at the latitudes and therefore the warm air rushes upwards as the warm air is lighter in weight and the gap is filled by the cold air so the air from the polar side moves towards the latitude belt. The air from the Polar region moves in towards the $60^\circ $latitude belt.

The correct answer is option A.

Additional information: The Polar regions are also known as frigid zones; they are the zones which are covered by North pole and South pole. The polar region receives very less intense solar radiation compared to any other part of the earth as this region is at an oblique angle and also it is such a position that the sunlight doesn’t reach there after scattering or reflecting through the surface of the earth.

Note: Whenever the molecules of any material are given energy then the molecules start vibrating on its position. If air molecules are given energy then they start vibrating at their position and also the molecules maintain some distance between each other and if the energy is taken away from the air molecules then the distance between the molecules becomes very less.