The Coriolis effect is the result of which of the following? A. winds spinning off the equator B. the rotation of the earth on its axis C. the different air movements north and south of the equator D. the friction that slows down winds near the earth's surface

The answer is B. the rotation of the earth on its axis.

Coriolis effect is the effect of the Earth's rotation on the oceans and atmosphere. It is the cause of deflection to the right in the northern hemisphere and to the left in the southern hemisphere. Thus, in the northern hemisphere, gyres spin clockwise, and in the southern hemisphere, gyres spin counter-clockwise.