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| is the process that breaks down rock and other substances at Earth's surface. |
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| Mechanical weathering (physical) |
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| The type of weathering in which rock is physically brokeninto smaller pieces. |
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| The grinding away of rock by rock particles carried by water, ice, wind , or gravity. |
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| Splits rock when water seeps into cracks, then frezzes and expands. |
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| breaks down rock through chemical changes. |
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| Characteristic of materials such as sand and gravel that allow water to pass easily through them. |
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| is the loose, weathered material on Earth's surface in which plants can grow. |
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| The sold layer of rock beneath the soil. |
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| Dark-colored organic material in the soil. |
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| soil that is made up of about equal of clay, sand , and silt. |
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| A layer of soil that differs in color and texture from the layers above or below it. |
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| a crumbly, dark brown soil that is a mixture of humus, clay, and other minerals. |
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| usually consists of claw and other paticles washed down from the A horizon, but little humus. |
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| As plants shed leaves, they form a loose layer. |
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| organsims that break the remains of dead organisms into smaller pieces and digest them with chemicals. |
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| The thick mass of tough roots at the surface of the soil- kept the soil in place and held onto moisture. |
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| one that is naturally replaced in a relatively short time. |
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| shown on the map in Figure 12m was an area where wind erosion caused severe loss of topsoil during the 1930s. |
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| is the management of soil to prevent its destrution. |
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| The practice of plowing fields along the curves of a slope. |
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| The soil and its plant cover as little as possible. |
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| is the movement of rock particles by wind, water ice, gravity. |
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| TAYLOR MIGGINS IS HOTTTT!!!! |
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