Weathering
chemical or mechanical process that breaks down and changes rocks on or near Earth's surface and whose rate is influenced by factors such as precipitation and temperature.
deposition
occurs when eroded materials are dropped in another location.
Erosion
removal and transport of weathered materials from one location to another by agents such as water, wind, glaciers, and gravity.
Gully erosion
erosion that occurs when a rill channel widens and deepens.
Rill erosion
erosion in which water running down the side of a slope carves a small stream channel.
Residual soil
soil that develops from parent material, which is similar to local bedrock.
soil
loose covering of weathered rock and decayed organic matter, that is characterized by texture, fertility, and color.
Soil horizon
distinct layer within a soil profile
soil profile
vertical sequence of soil layers, containing A-horizon, B-horizon, C-horizon