Global Wind belts
This is formed by two things heating and the earth's spin. The simple answer would be that this makes tropical regions warmer then polar reasons.
The easiest way to explain this is a area where the winds are calm around the equator.
This is explaining he sub tropical highs and sub tropical latitudes.
These are the patterns from the eastern winds and near the earth's equator
These are the exact opposite of trade winds. They blow from the west to the east.
these are dry cold winds that blow in the north and south pole. These produce a outward flow to the equator.
These are small strips of strong winds. they blow in the higher atmosphere and usually from west to east.