"Polar easterlies caused by air above poles being relatively warmer", the statement that describes best about these winds.
Answer: Option A
Step-by-step explanation:
Warm air rises up still that attains a specific height, from which it begins to overflow with the surroundings. Cold, thick air falls on the poles. The air presented in the upper atmosphere flows through it, increasing its weight and creating a high pressure area near the poles.
The raised air on the equator does not reach the poles directly. The rotation of the earth causes the air to accumulate around 30 ° N. Due to Earth rotation and Coriolis power, the air in northern hemisphere moves to the right.
As a result, the air movement in the circulation of polar cells causes polar lichen. In a circular chamber between 60 ° and 30 ° N, air movement causes dominant westerly winds.