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Definition
| The process that breaks down rock and other substances at earths surface. |
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Definition
| The movemant of rock particles cy wind, water, ice, or gravity. |
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Term
Mechanical weathering
"phisical" |
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Definition
The type of weathering in which rock is phisically broken into smaller pieces
By freezing and thawing, release of pressure, growth of plants, and actions of animals. |
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Term
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Definition
| the grinding away of rock by rock particals carried by water, ice, wind, or gravity |
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Definition
| wedging of ice in rocks widen and deepen cracks |
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Definition
| the process that breaks down rocks 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 earths surjace in which plants can grow |
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Definition
| the solid layer of rock beneath the soil |
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Definition
| a kark-colored substance thatforms as plant and animal remains decay. |
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Definition
| Soil that is made up of amout equal parts of clay, sand, and silt. |
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Term
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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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Term
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Definition
| a crumbly, dark brown soil that is a mixture of humus, clay, and other minerals |
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Term
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Definition
| usually 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 layer |
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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. |
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Term
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Definition
| a resource 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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Term
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Definition
| the managment of soil to prevent its destruction. |
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Term
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Definition
| The practice of plowing fields along the curves of a slope. This helps the runoff of excessrainfall and prevents it from washing away. |
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Term
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Definition
| a way to disturb the soil and its plany cover as little as possible. |
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