The motives that spur human beings to examine their environment are many. Strong among them are the satisfaction of curiosity, the pursuit of trade, the spread of religion, and the desire for security and political power. At different times and in different places, different motives are dominant.
Wind Causes Weathering and Erosion Wind causes weathering by blowing bits of material against cliffs and large rocks. This wears and breaks the rock down into sand and dust. Wind also erodes sand and dust
