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Definition
| the process that breaks down rock and other substances at Earths surface |
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Definition
| the movement of rock particles by wind, water, ice, or gravity |
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| mechanical weathering(physical) |
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Definition
| the type of weathering in which rock is physically broken down into smaller pieces |
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| the term abrasion refers to the grinding away of rock particles carried by water, ice, wind, or gravity |
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Definition
| the process that splits rock when water seeps into cracks, then freezes and expands |
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| the process that breaks down rock through chemical change |
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| charactistic of materals such as sand and gravel that allow water to pass through them |
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| the loose, weathered material on Earth's surface in which plants can grow |
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Definition
| the solid lawyer beneath the soil |
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Definition
| a dark-colored substance that forms as plant and animal remains decay |
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| soil that is made up of about equal parts of clay, soil, 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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| the mixture of humus,clay,and other materials that form the crumbly topmost layer of soil |
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| the layer of soil beneath the topsoil that contains mostly clay and other materials |
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| the loose layer of dead plant leaves and stems on the surface of the soil |
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Definition
| an organism that breaks down large molecules from dead organisms into small and returns important materials to the environment |
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Definition
| the thick mass of tough roots at the surface of the soil |
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Definition
| a resource that is naturally replaced over a short period of time |
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Definition
| the area of the Great Plains where wind and erosion caused soil loss during the 1930s |
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Definition
| the management of soil to prevent its destruction |
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Definition
| the pratice of plowing fields along the curves of a slope |
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Definition
| soil conversvation method in which the dead stalks from the previous year's crop are left in the ground to hold the soil in place |
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