This is the horizontal movement of air caused by heating from the sun and rotation of the planet. this is a physical process which takes place when rocks are broken down without any change in their chemical nature. the rocks are broken apart by physical force,

The horizontal movement of air that is caused by the rotation of the planet and by the heating from the sun is called wind. On the other hand the Mechanical Weathering is the physical process that happens when rocks are broken without there being any change in their chemical nature.