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| the process that breaks down rock and other substances at earth surface. |
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| the movement of rock particals by wind water ice or gravity. |
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| the type of weatering were rock is physically broken down into smaller pieces. |
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| refers to the grinding away of rock by rock particals carried by water,ice,wind or gravity. |
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| wedges of ice in rocks widen and deepen cracks. |
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| the proccess that breacks down rock through chemical changes. |
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| that a material is full of tiny connected air spaces that allow wate to seep through it. |
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| the loose weathered material on Earths surface in wich plants can grow. |
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| the solid layer of rocck beneath the soil. |
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| a dark colered substance that forms as a plant and animal remains decay. |
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| soil that is made up ofequal parts of clay,sand,and silt. |
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| is a layer of soil that differs in color and texure from the layer above it 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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| usally consists of clay and other particals waashed down from the A horizon but little humus. |
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| the organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals. |
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| thick mass of tough roots at the surface of the soil- kept the soil in place and hold moisture. |
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| one that is naturally replaces its self in a relativly short amount of time |
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| an area were wind erosin caused severe loss of topsoil. |
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| manegment of soil to prevent its destruction |
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Definition
| the practice of plowing fields along the curves of a slope |
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| disturbs the soil ad its plants cover as little as posible. |
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Definition
| as plants shed leaves the form a loose layer called ________. |
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| What factors cause mechanical weathering? |
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Definition
| The factors that cause mecanical weathering are freezing, thawing, release of pressure, growth of plants and actions of animals. |
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Term
| What factors cause mechanical weathering? |
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Definition
| The factors that cause mecanical weathering are freezing, thawing, release of pressure, growth of plants and actions of animals. |
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