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Definition
| the process that brakes down rock and other stances at Earth's surface |
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Definition
| the movement of rock particles by wind, water, ice, or gravity. |
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| mechanical or physical weathering |
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Definition
| breaks rock into pieces by freezing and thawing, release of pressure, growth of plants, and actions of animals. |
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Definition
| the grinding away of rock particles carried by water, ice, wind, or gravity. |
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Definition
| the process in which wedges of ice in rocks widen and deepen cracks |
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Definition
| the process that breaks down rock through chemical changes |
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Definition
| that material is full of tiny, connected air spaces that allow water to seep thtough it |
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Definition
| the loose, weathered material on earth's surface in which plants can grow. |
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Definition
| the solid layer of rock beneath soil. |
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Term
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Definition
| a dark-colored oraganic material in soil |
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Definition
| soil that is made up of about equal parts of clay, sand, and silt |
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Term
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Definition
| a layer of soil that differs in color and texture from the layers above or below it |
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Definition
| a crumbly, dark brown soil that has a mixture of humus, clay, and other materials |
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Term
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Definition
| usually consists of clay and other particles washed down from the A horizon. |
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Definition
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Definition
| the organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals |
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Definition
| the thick mass of tough roots at the surface of soil. |
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Term
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Definition
| a resource that is naturally replaced in a relatively short time |
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Definition
| an area where wind erosion caused severe loss of top-soil during the 1930s |
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Term
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Definition
| the management of soil to prevent it's destruction. |
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Term
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Definition
| the practice of plowing fields along the curves of a slope. |
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Term
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Definition
| disturbs the soil and its plant cover as little as possible |
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