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Review Questions & Answers

Geography / Soils

What is soil?

A natural body consisting of layers (horizons) of mineral materials, organic materials, air, and water that support plant life. *

A layer of solid rock underlying loose deposits such as soil or alluvium.

A mixture of sand, silt, clay, and organic matter found only in desert regions.

Organic material composed mainly of water and plant debris, found exclusively in swamps.