7th Grade Chapter 12 Review Question Preview (ID: 842)
Agents Of Erosion.
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Weathered materials are eroded by the action of _______________.
a) Wind, ice, gravity, and water
b) Wind, water, and soda
c) Wind and ice
d) Ice, gravity, and rivers
Rivers are classified as young, mature, and old. What are their qualities?
a) A young river is slow and does less eroding while an old river is fast and erodes a lot.
b) A young river does more transporting of soil. The old river is skinny and moves slowly.
c) A young river is very active at eroding while an old river is wider and moves slowly.
d) A young river is not active at eroding while a mature river is wider.
How does a glacier form?
a) A glacier forms by water building up and the water erodes away the land.
b) A glacier forms by larger particles moving only a short distance.
c) A glacier forms by unmelted layers of snow build up and turn to ice.
d) A glacier forms by someone putting water in the freezer and it turns to ice.
What is deflation?
a) The process by which wind carries away loose sediment.
b) The process by which water carries away loose sediment.
c) The process by which ice carries away loose sediment.
d) The process by which gravity carries away loose sediment.
What is abrasion?
a) The process by which rocks or soil move down hill.
b) The process by which sediments form at the base of a mountian.
c) The process by which water rubs sediment particles wearing away rock surfaces.
d) The process by which wind rubs sediment particles wearing away rock surfaces.
What is deposition?
a) The picking up of weathered materials in a new place.
b) The dropping of weathered materials in a new place.
c) The dropping of ice in a new place.
d) The picking up of ice in a new place.
What are the four forms of mass movement or when gravity pulls rocks or soil down a slope?
a) Mudflows, landslides, ice, and wind
b) Mudflows, creep, water, and popsicles
c) Mudflows, slump, water, and wind
d) Mudflows, landslides, slump, and creep
How does a glacier erode a mountain?
a) Ice wedging causes rocks to break apart.The glacier scrapes and scratches the rock.
b) Snow and ice makes rocks break apart which move down the hill uprooting trees.
c) Unmelted layers of snow build up and turn to ice.
d) A glacier forms by sorted layers deposit which is called outwash.
Why is mass movement more common on a steep slope than on a flat field?
a) Mass movement is caused by wind erosion. A flat field has more effect on the wind.
b) Mass movement is caused by gravity. On a flat field, gravity has no place to pull material.
c) Mass movement is caused by water.
d) Mass movement is caused by ice. On a flat field, glaciers have no place to go.
An alluvial fan is an example of ___________________ depositon.
a) water
b) wind
c) gravity
d) ice
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