Why do westerly winds prevail at upper altitudes?
A)rotation of the earth
B)lower air density
C)absence of friction
D)rotation of the earth and equator to pole temperature contrast
E)equator to pole temperature contrast

Question

Quizplus · Accepted Answer

The westerly winds prevailing at upper altitudes are a result of two factors: the rotation of the earth and the equator to pole temperature contrast. The rotation of the earth causes a Coriolis effect that deflects the moving air masses to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. Additionally, the contrast between the warm air at the equator and the cold air at the poles creates a pressure gradient that drives the air movement toward the poles. These two factors combine to create westerly winds at upper altitudes. The other options (A, B, C, and E) either do not explain the phenomenon or are not directly related to it.

Why Do Westerly Winds Prevail at Upper Altitudes