Earth Science- Weathering And Erosion Quiz

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