Wasting
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Heavy irrigation on a hillslope will cause __. | All of the answers are correct
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| Assuming that all other conditions are identical, a slope that is ___ is more stable. | more gently inclined
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| Among techniques used to prevent rockfalls along highways is to _____. | All of the answers are correct
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| The rate of movement in creep is usually __. | a centimeter or less per year
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| A(n) apron of fallen rock fragments called ___ is generally found at the base of a slope affected by rockfall. | talus
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| When soil is saturated with water ____ increases. | pore pressure
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| In ____, soil in which fine grains predominate moves downslope as a viscous fluid. | earthflows
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| A(n) _____ is the rapid sliding of a mass of bedrock along an inclined surface of weakness. | rockslide
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| ______ is ground that remains frozen for many years. | Permafrost
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| In areas where the daily temperature regularly varies above and below the freezing temperature of water, the freeze-thaw cycle __. | All of the choices are all correct
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| _____ commonly trigger mass wasting events. | Earthquakes
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| ____ generally makes a slope more susceptible to mass wasting of soil. | Construction
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| When a stream, wave action, or excavation by humans undercuts the base of a slope, slope failure may occur because __. | downslope support of the slope materials will have been reduced or eliminated
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| Mudflows are ___ likely to occur in arid regions than in wet climates | more
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| Two factors that contribute significantly to soil creep are water in the soil and ___. | freeze-thaw cycles
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| If, over a period of time, your home develops doors that stick, cracked walls, broken pipes, and cracked driveways, ____ may be occurring. | soil creep
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| Mudflows generally contain __. | primarily mud-sized particles with some water, but may also contain particles as large as boulders
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| A(n) _____ is a general term that tells nothing about the processes involved. | landslide
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| If movement becomes very rapid, a rockslide may break up and become __. | a rock avalanche
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| List the following flow terms in the order of decreasing velocity (fastest first): mudflow, debris avalanche, creep, and earthflow. | debris avalanche, mudflow, earthflow, creep
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| One way to prevent slope failure is to __. | All of the answers are correct.
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| Which of the following factors are how geologists, engineers, and others classifying mass wasting? | rate of movement, type of material, type of movement
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| Shear strength __. | is the total force/stress resisting movement
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| In a translational slide, the descending mass __. | moves along a plane approximately parallel to the slope of the surface
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| Resistance to movement or deformation of soil is called __. | shear strength
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| A rock avalanche begins its downslope journey __. | as bedrock
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| A _____ involves movement along a curved surface. | rotational slide
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| Mudflows are ___ likely to occur in areas not protected by vegetation. | more
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| Slide is a term that means that the descending mass __. | remains intact
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Created by:
Thomas.Siu
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