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Definition
| is the process that breaks down rock and other substances at earth's surface. |
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| is the movement of rock particles by wind,water,ice or gravity. |
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Definition
| the type of weathering in which rock is physically broken down into smallar pieces. |
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Definition
| refers to the grinding away of rock by rock particles carried by wind,water,ice or gravity |
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Definition
| Wedges of ice widen and deepen cracks. |
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| the process that breaks down rock through chemical changes. |
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| means that the material is full of tiny coneected air spaces that allow water to seep through the rock |
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Definition
| is the loose weathered material on earth's suface in which plants can grow |
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Definition
| is the solid layer or rock beneath the soil |
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Definition
| is a dark colored sustance that forms as plant and animals remains decay |
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Definition
| soil that is made up of equal parts of clay,sand,and silt |
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Definition
| is a layer of soil that differs in color and texture from layers 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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Term
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Definition
| usally 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 called litter |
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Term
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Definition
| are orginisims that break the remains of dead orginisims into smaller peices 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
| is one that is naturally replaced in a relatively short time |
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Definition
| was an area where win erosion caused severe loss of topsoil during the 1930's |
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Term
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Definition
| is the management of soil to prevent it's destruction |
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Definition
| is 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 it's plant cover little as possible |
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Term
| factors that cause mechanical weathering |
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Definition
| heat,cold and ice as well as oxygen and carbon dioxside in the atmosphere. |
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Term
| three causes of chemical weathering |
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Definition
| water,oxygen,carbon dioxside and living organisims. |
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Term
| Chemical weathering occurs faster in hot wet climates because ... |
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Definition
| Rainfall provides the water needed for chemical weathering and chemical reactions occur faster at higher temperatures. |
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Term
| Weathering plays the ____________role in soil formation |
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Definition
| weathering occurs most rapidly in areas with a warm,rainy climate. As a result,soil develops more quickly in these areas. |
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