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Definition
| the process that breaks down rock and other substances at Earth's surfaces |
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| mechanical weathering/physical |
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Definition
| the type of weatherng in which rock is physically broken into smaller pieces |
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Definition
| the movement of rock particles by wind,water,ice, or gravity |
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Definition
| the grinding away of rock by 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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Definition
| process that breaks down rock 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
| loose, weathered material on Earth's surface in which plants can grow |
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Definition
| 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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Definition
| 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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Definition
| a crumbly, dark brown soil that is a mixture of humus, clay, and other materials |
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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
| when plant shed leaves they from a loose layer called what |
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Definition
| organisms that break down the remains of dead organisms into smaller pieces adn digest them with chemicals |
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Definition
| thick mass of tough roots at the surface of the soil |
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Definition
| one 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 management 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 |
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Term
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Definition
| disturbs the soil and is plant cover as little as possible |
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