What is the cause of the wind deflection in the separate hemispheres?

The Coriolis Effect also causes ocean surface currents to be deflected to the right of the winds. This phenomenon causes currents in the northern hemisphere to move in a clockwise direction and a counterclockwise direction in the southern hemisphere.

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).