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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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Definition
| the type of weathering in which rock is physically broken into small pieces. |
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Definition
| refers to the grinding away |
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| refers to the grinding away of rock particles carried by water,ice wind or gravity. |
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| is the movement of rock particles by wind, water, ice or gravity. |
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| wedges of ice in rocks winden and ice melts,the water seeps deeper into the cracks. |
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Definition
| wedges of ice in rocks winden and ice melts,the water seeps deeper into the cracks. |
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Definition
| is the prcess that breaks down rock thourgh chemical changes. |
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Definition
| means that a material is full of tiny,connected air space that allow water to seep through it. |
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| is the loose, weathered material on earth's surface in which plants can grow. |
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Definition
| in the solid layer rock beneath the soil. |
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Definition
| the decayed organic material in the soil. |
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Definition
| is a lsyer of soil that differs in color and texture from the layer 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 particals washed from a horizon but little humus. |
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Definition
| as plants shed leaves,they form a loose layer. |
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Definition
| are the organism that break the remains of dead organisms inti smaller pieces and digest with chenicals. |
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Definition
| 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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Definition
| is one that is naturally replace in a relatively shot time. |
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Definition
| area where wind erosion caused severe loss of the topsoil during the 1930s |
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Definition
| is the management of soil to prevent its destuction |
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Definition
| is the practice of plowing fields along the curver of a slope |
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Definition
| disturbs the soil and its plant cover as little as possible. |
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