Mini quiz: Answer multiple choice questions.


Soils are formed by the processes of weathering when the regolith, the accumulating surface layer of sediment also formed by weathering, is not disturbed by erosion. The regolith undergoes reorganization, by the processes of weathering, so that distinct horizontal layers (soils horizons) are formed. These layers stack vertically to form a soil profile.

Russell J. Wernlund

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