EARTH SCIENCE
NATURAL HAZARDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a rock arch
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a landslide
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a sand dune
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a fossil layer
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Detailed explanation-1: -Mass movement is an erosional process that moves rocks and sediments downslope due to the force of gravity. The material is transported from higher elevations to lower elevations where other transporting agents like streams or glaciers can pick it up and move to even lower elevations.
Detailed explanation-2: -LESSON SUMMARY. Gravity moves earth materials from higher elevations to lower elevations. Landslides, avalanches, and mudflows are examples of dangerous erosion by gravity.
Detailed explanation-3: -Gravity is responsible for erosion by flowing water and glaciers. But gravity also causes erosion directly. Gravity can pull soil, mud, and rocks down cliffs and hillsides. This type of erosion and deposition is called mass wasting.
Detailed explanation-4: -Landslides are a type of “mass wasting, ” which denotes any down-slope movement of soil and rock under the direct influence of gravity.