Term
| when does mechanical weathering occur? |
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Definition
| when physical forces break rocks into smaller and smaller pieces without changing the rock's mineral composition. |
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Term
| name the three physical processes that cause mechanical weathering? |
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Definition
| frost wedging,unloading and biological activity. |
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Term
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Definition
| frost weding is most common in mountains regions in the middle latitudes. here daily freezing and having often occur. |
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Term
| slabs of outer rock separate like the layer of an onion and breaks loose in a process called? |
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Definition
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Term
| what is meant by biological activity? |
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Definition
| the activities of organism,including plants,burrowing animals,and humans,can cause mechanical. |
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Term
| explain chemicals weathering? |
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Definition
| transformation of rocks into one or more new compounds. |
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Term
| ________ is the most important agent of chemical weathering . |
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Definition
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Term
| can chemicals weathering change the physical shape of a rock? |
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Definition
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Term
| what two factors affect the rate of weathering? |
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Definition
| characteristic and climates |
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Term
| give an example of a rock characteristic. |
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Definition
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Term
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Definition
| weather produces a layer of rock and minerals fragments |
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Term
| name 4 major components of soil. |
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Definition
| water and air, mineral matter, organic matter |
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Term
| what are the most important factors in soil formation? |
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Definition
| parent material, time, climate,organisms and slope |
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Term
| soil varies in composition,__________,_________,_________ and at different depths. |
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Definition
| soil varies in composition, texture, structure, and in formation at different depths. |
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Term
| what are the three common types of soil? |
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Definition
| Pedalfer,Pedocsl,and Paterite |
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Term
| how do human activities affect rates of erosion? |
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Definition
| remove natural vegetation, such as family,bagging, and construction, have greatly acceverated erosion |
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Term
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Definition
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Term
| how do geologists classify mass movements? |
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Definition
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Term
| when does rock fall occur? |
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Definition
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Term
| how does mudflows differ from earth flows? |
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Definition
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