EG2-Soils
Soil is one of the most important earth materials we encounter each day, but the definition of soil is difficult. Soil Scientists (and most ordinary people):
The Twelve USDA Soil Orders Entisols Inceptisols Mollisols Alfisols Spodosols Histosols Andisols Oxisols Ultisols Gelisols Vertisols Aridisols.
GEOL 446 Environmental Geology
