How does the winds caused explain briefly.
The wind is caused by differences in atmospheric pressure. When a difference in atmospheric pressure exists, air moves from the higher to the lower pressure area, resulting in winds of various speeds. On a rotating planet, air will also be deflected by the Coriolis effect, except exactly on the equator.
The wind is the movement of air, caused by the uneven heating of the Earth by the sun and the Earth's own rotation.