How does geology cause soil degradation?
Geology does not cause soil degradation. Geology describes land forms and layers of rock and other materials. As you dig down you find different layers of soil. Wind, rain, and running water have less difficulty washing away some layers than others. As a result, the way land will erode depends on the underlying geology. If there is a layer of dirt, it will wash away or blow away easier than a layer of solid rock. In the 1930’s, some idiot in the United States Department of Agriculture decided that the Great Plains should be changed from grazing land to farm land. That changed grass land to dirt. When high winds came, they blew dirt all the way to the Atlantic Ocean. Wind blows dirt. The wind did not blow the grass. The geology did not cause the soil degradation, the wind did as did the idiots in the Agriculture Department. Grass had prevented the soil degradation for thousands of years.
