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Definition
| the process that breaks down rock and other substances 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/physical weathering |
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Definition
| the type of weathering in which rock is physically broken into smaller pieces |
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Definition
| refers to the grinding away of rock by rock particles carried by water, ice, wind or gravity |
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Definition
| wedges of ice in rocks widen and deepen cracks |
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| the pocess that breaks down rock through chemical changes |
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Definition
| a material is full of tiny, connected air spaces that allow water to seep through 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 the soil |
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Definition
| a dark-colored substance that forms as plant and animal remains decay |
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Definition
| soil that is made up of about equal parts of clay, sand, and silt |
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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 is a mixture of humus, clay, and other minerals |
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Definition
| usually consists of clay and other particles washed down from the A horizon, but little humus (horizon B) |
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Definition
| the loose layers formed as plants shed leaves |
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Definition
| 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 the soil (keeps the soil in place and held onto moisture) |
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Definition
| one that is naturally replaced in a relatively short time |
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Definition
| an area where wind erosion caused severe loss of topsoil during the 1930's |
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Definition
| the management of soil to prevent its destruction |
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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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