Winds are highly variable in direction and power. In spite of the local weather however, the global pattern of winds is very predictable.
Wind is part of the forces of nature which change the Earth's surface. To assist wind in eroding, weathering and transporting material, the processes of chemical and mechanical weathering must already have had an effect. Once there is a breakup of the mineral particles of which rock is made, winds can act.
The power of wind to produce an effect is accomplished through its force, its ability to carry particles, and it's ability to drive particles into solid rock.

