14th March 2012
Dear Mr Warren,
The topography or relief characterized by the inclination of the surface determines the rate of precipitation runoff and rate of formation and erosion of the surface soil profiles. There, organisms feed on them and mix the organic material with the upper soil layers; these added organic compounds become part of the soil formation process. The exposure of parent material to favourable conditions produces mineral soils that are marginally suitable for plant growth. In its earliest stage of decomposition the original organic material is often called raw organic matter. It is associated with levee and dam failure, as well as sink hole formation.
Regards,
The Abministrator