What Is Soil?

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What Is Soil?
Image T. Loynachan
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Soil is a layer of unconsolidated material on the
Earths surface in which plants grow.
Image Louis Maher
Image Professional Soil Classifiers Assoc. of
Alabama
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Soil is a mixture of mineral grains from the
Earth, decomposing organic matter, and voids
filled with air or water.

Image Professional Soil Classifiers Assoc. of
Alabama
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Soil is the Earth material that links living
things (biosphere), air (atmosphere), water
(hydrosphere), and the solid Earth (geosphere).

Image Bruce Molnia
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