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Definition
| the process that breaks down rock and other substances at Earth's surface. |
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Definition
| the movenment of particles by wind, water, ice, and gravity. |
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| the type of weathering in which rock is physically broken into smaller pieces. |
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| refers to the grinding away of rock by rock particles carried by water, ice wind, or gravity. |
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Definition
| the process of wedges of ice in rocks widen and deeping cracks. |
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| the process that breaks down rock through chemical changes. |
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Definition
| that the material is full tiny, connected air spaces that allow water to seep through it. |
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| the loose, weathered material on Earth's surface in which plants can grow. |
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| 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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| 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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| a crumbly, dark brown soil that is a mixture of humus, clay, and other minerals. |
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Definition
| consists of clay and other particles washed down from the A horizon but little humus. |
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Definition
| as plants shed leaves, they form a loose leyer. |
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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 the soil-kept the soil in place abd held onto moisture. |
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Definition
| one that is naturally replaced in a relativity stort time. |
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Definition
| the area of the Great Plains where wind erosion caused soil loss during the 1930s. |
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Term
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Definition
| the management of soil to prevent is destruction. |
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| the practice of plowing fields along the curves of a slope. |
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Definition
| disturbs the soil and its plant cover as little as possible. |
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Term
| Factors that cause mechanical weathering |
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Definition
| release of pressure of pressure; freezing and thawing; plant of growth; abrasion; and animal actions |
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