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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