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Earth Science- Weathering And Erosion Quiz

47 Questions  I  By Falvs17
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1.  What are the four agents of erosion?
A.
B.
C.
D.
2.  Thin sheets of soil removed prevent by--grass, continued plowing, crop rotation, strip crop, terraces.
A.
B.
C.
3.  Running what is the most effective agent of erosion.
A.
B.
4.  Planting a field with one type of crop one year and a different type of crop the next year.
A.
B.
C.
D.
5.  The slow, downslope flow of soil saturated with water over hard or frozen layers in areas surrounding glaciers at high elevations is called
A.
B.
C.
D.
6.  What may occur in dry regions guring a sudden, heavy rainfall or as a result of volcanic eruptions, with mud churning and tumbling down slopes and through valleys?
A.
B.
C.
D.
7.  A relatively flat landform near seal level.
A.
B.
C.
8.  Process by which rocks break down as a result of chemical reactions.
A.
B.
C.
9.  Planting crops in alternating bands, one of which is a cover crop that slows rain runoff.
A.
B.
C.
D.
10.  What occrs along very steep slopes when saturation by water and loss of friction with underlying rock cause loose soil to slip downhill in one huge piece?
A.
B.
C.
D.
11.  Small, narrow-topped formations.
A.
B.
C.
12.  Examples of mechanical weathering. (mark all that apply)
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
13.  Wearing down of particles.
A.
B.
C.
14.  Found in eastern half of U.S. where amout of rainfall exceeds 25 inches a year, a lot of vegetation and acidic soil.
A.
B.
C.
D.
15.  How do some farming and ranching practices increase soil erosion?
A.
B.
C.
D.
E.
16.  High elevation and latitude, very few layers, shallow..permafrost.
A.
B.
C.
17.  A broad, flat landform that has a high elevation. Subject to much more erosion than a plain.
A.
B.
C.
18.  Found in western half of U.S. where rainfall is less than 25 inches a year, basic soil.
A.
B.
C.
19.  This horizon is formed from the leaching of horizon A.
A.
B.
C.
20.  Zone of soil are called
A.
B.
C.
21.  The movement of a large mass of sediment or a section of land down a slope is called
A.
B.
C.
D.
22.  Most important result of weathering is
A.
B.
C.
23.  Three examples of wind erosion.
A.
B.
C.
24.  Soil that was moved by wind or glacier.
A.
B.
C.
25.  Soil made from local bedrock.
A.
B.
C.
26.  Plowing soil in curved bands that follow the shape of the land, thus preventing soil from flowing directly down slopes.
A.
B.
C.
D.
27.  What is the rapid fall of rocks, ranging in size from tiny fragments to large boulders, from a steep cliff?
A.
B.
C.
D.
28.  What are five examples of mass movements?
A.
B.
C.
D.
29.  The breakdown of rock due to exposure to the atmosphere, weather, plants and animals.
A.
B.
C.
D.
E.
30.  Examples of chemical weathering. (mark all that apply)
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
31.  Most important factor affecting soil is
A.
B.
C.
32.  Building steplike ridges that follow the contours of a sloped field, thus slowing the down slope movement of water.
A.
B.
C.
D.
33.  Occuring as a result of heavy rainfall, spring thaws, volcanic eruptions, or earthquakes, the sudden fall down a steep slope of masses of loose rock combined with soil is called a
A.
B.
C.
D.
34.  What are the factors that determin soil makeup?
A.
B.
C.
35.  The entire arrangement of horizons are called
A.
B.
C.
36.  An accelerated soil erosion caused by the plowing of furrows up and down slopes that allows water to run swiftly over soil, carrying away the topsoil, is called
A.
B.
C.
37.  Rates of weathering. (mark all that apply)
A.
B.
C.
D.
E.
F.
38.  Rock is split or broken into smaller material without changing its composition.
A.
B.
C.
D.
E.
39.  Subsoil, more clay is washed down.
A.
B.
C.
40.  Once the plants die that are on top of the horizon, the nutrients make
A.
B.
C.
41.  Definition of creep.
A.
B.
C.
D.
42.  Topsoil, gray or black, has humus.
A.
B.
C.
43.  Constant erosion reduces the __________ of the soil by removing the A horizon, which contains humus.
A.
B.
C.
44.  Rock fragments and slighty weathered bedrock..you keep diging here, you'll eventually hit soil rock.
A.
B.
C.
45.  A smaller plateau that are tablelike areas.
A.
B.
C.
46.  Removal of loose particles by wind--most important effect by wind.
A.
B.
C.
47.  Warm and wet, speed up chemical weathering.
A.
B.
C.
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