It is made up of sandy soil and clay soil. Clay soil is the densest soil because of the small size of non-living particles. Some people are more specific and call soil by scientific names. For example, scientists use entisol soil for when it is mostly found in a river valley. Vertisol soil is found in grasslands in seasonally dry seasons.
Inceptisol soil is found worldwide and found mostly in mountain areas.
Aridisol soil is also found worldwide and mostly found in desert areas. There are a lot more scientific names for soil. Mollisol soil is mostly found in the Great Plains, Argentine Pampas, and the Russian Steppes. Spodosol soil is mostly found in the northern forests of Europe and North America. Alfisol soil is soil that is found in humid temperatures in the regions of North America and Europe.