The deflection of the wind to the right in the northern hemisphere and to Its left in the southern hemisphere is caused by the

The deflection of the wind to the right in the northern hemisphere and to Its left in the southern hemisphere is caused by the Rotation of the Earth. Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect.