Question 1

A mass wasting process that involves rapid down- slope movement of debris aided by a cushion of air is called______ .

Accepted Answer

A)   a slump
B)   a rock avalanche
C)   a rock fall
D)   a rock slideE) A) and D)
F) A) and C)

Question 2

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Accepted Answer

A)   creep
B)   rockslide
C)   debris flow
D)   slumpE) A) and C)
F) A) and B)

Question 3

Slump describes the very ______of soil and regolith.

Accepted Answer

A)   fast downhill motion
B)   fast weathering
C)   deposition
D)   slow downhill motionE) A) and C)
F) A) and B)

Question 4

What two factors speed up rates of chemical reaction and weathering in rocks and soils?

Accepted Answer

A)   warm temperatures; very moist
B)   high temperatures; very dry
C)   low temperatures; very moist
D)   low temperatures; very dryE) A) and B)
F) A) and C)

Question 5

After the drought of the 1930's farmers in the Great Plains were encouraged to plant rows of trees across fields to decrease soil erosion. How would this reduce soil erosion?

Accepted Answer

A)   The trees helped shade the ground, retaining moisture.
B)   Tree roots would retard runoff and prevent erosion.
C)   The trees can serve as windbreaks to slow wind erosion.
D)   The trees had no effect; they were just used to improve the land appearance after the great depression.E) C) and D)
F) None of the above

Question 6

What is the greatest danger from earthflow?

Accepted Answer

A)   loss of water quality by mud flowing into river drainages, polluting the water
B)   loss of life by rapid downslope movement of the earthflow
C)   loss of property along the path of the earthflow
D)   deforestation along the earthflow pathE) All of the above
F) None of the above

Question 7

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Accepted Answer

A)   B horizon
B)   E horizon
C)   A horizon
D)   C- horizonE) A) and B)
F) C) and D)

Question 8

All of the following are factors affecting mass wasting except for ______.

Accepted Answer

A)   slope angle
B)   geologic age
C)   gravity
D)   waterE) C) and D)
F) B) and C)

Question 9

Limestone and marble weather faster than granite because______ .

Accepted Answer

A)   limestone and marble can be dissolved by weak acids in rain
B)   granite is more resistant to physical weathering because of its large crystals
C)   granite does not react with rainwater and only weathers by physical erosion
D)   limestone has many cracks and holes that allow water to infiltrate and weather the rockE) A) and D)
F) B) and C)

Question 10

Which term denotes the true soil above the zone of partly weathered bedrock?

Accepted Answer

A)   humus
B)   regolith
C)   loam
D)   solumE) A) and B)
F) B) and C)

Question 11

Which one of the following statements best describes erosion?

Accepted Answer

A)   disintegration and decomposition of rocks and minerals at the surface
B)   movement of weathered rock and regolith toward the base of a slope
C)   the combined processes of leaching, eluviation, and mass wasting
D)   the process by which weathered rock and mineral particles are removed from one area and transported elsewhereE) A) and D)
F) A) and C)

Question 12

All of the following are factors that affect rates of weathering except for______ .

Accepted Answer

A)   geologic age of Earth materials
B)   climate
C)   rock characteristics
D)   surface areaE) A) and B)
F) A) and C)

Question 13

Chemical weathering rates are highest in ______ .

Accepted Answer

A)   cold wet climates
B)   cold dry climates
C)   hot dry climates
D)   hot wet climatesE) A) and B)
F) A) and C)

Question 14

What is the feature labeled "A" in the diagram below? Also, how did it form?

Accepted Answer

Talus slope. Rocks fell from t...

Question 15

______involves the downslope movement of a block or blocks of unconsolidated soil and regolith along a curved, slip surface.

Accepted Answer

A)   Debris pile
B)   Slump
C)   Talus
D)   AlluviumE) C) and D)
F) B) and C)

Question 16

Why is soil structure important to know?

Accepted Answer

A)   It is an indicator of future climate.
B)   It is an indicator of how susceptible the soil is to erosion.
C)   It reveals composition.
D)   It is not that critical; what matters is organic content.E) A) and B)
F) C) and D)

Question 17

How does deforestation by fire or human activity contribute to mass wasting?

Accepted Answer

A)   It allows the wind to blow across the slopes, imparting a stress that triggers landslides.
B)   It kills tree roots that help hold the slopes in place, allowing mass movement.
C)   It allows excess rainfall runoff to erode the landscape, triggering mass wasting.
D)   It allows farming activity that exposes soil to erosion and mass wasting.E) A) and B)
F) A) and C)

Question 18

A ______ mechanism, such as heavy rains or an earthquake, are sometimes instrumental in causing mass wasting to occur.

Accepted Answer

A)   triggering
B)   filtering
C)   mitigating
D)   saturatingE) C) and D)
F) A) and B)

Question 19

In terrain with steep hill slopes, which crop and cultivation technique will minimize soil erosion?

Accepted Answer

A)   apples; land between the trees is planted in grass and not cultivated
B)   bean; rows are spaced wider than on a level field
C)   winter wheat; after the harvest, the field is plowed and left idle until next fall
D)   corn; rows trending straight down the slope, frequent cultivationE) B) and C)
F) C) and D)

Question 20

A mass wasting process that involves slip of solid rock above a distinct sliding surface is called______ .

Accepted Answer

A)   a slump
B)   a rock avalanche
C)   a rock fall
D)   a rock slideE) A) and B)
F) A) and C)

Exam 8: Weathering, Soil, and Mass Movement

After the drought of the 1930's farmers in the Great Plains were encouraged to plant rows of trees across fields to decrease soil erosion. How would this reduce soil erosion?

Correct AnswerverifiedShow Answer

What two factors speed up rates of chemical reaction and weathering in rocks and soils?

Correct AnswerverifiedShow Answer

In terrain with steep hill slopes, which crop and cultivation technique will minimize soil erosion?

Correct AnswerverifiedShow Answer

All of the following are factors affecting mass wasting except for ______.

Correct AnswerverifiedShow Answer

______involves the downslope movement of a block or blocks of unconsolidated soil and regolith along a curved, slip surface.

Correct AnswerverifiedShow Answer

Which one of the following statements best describes erosion?

Correct AnswerverifiedShow Answer

Limestone and marble weather faster than granite because______ .

Correct AnswerverifiedShow Answer

What is the greatest danger from earthflow?

Correct AnswerverifiedShow Answer

A mass wasting process that involves slip of solid rock above a distinct sliding surface is called______ .

Correct AnswerverifiedShow Answer

How does deforestation by fire or human activity contribute to mass wasting?

Correct AnswerverifiedShow Answer

Chemical weathering rates are highest in ______ .

Correct AnswerverifiedShow Answer

All of the following are factors that affect rates of weathering except for______ .

Correct AnswerverifiedShow Answer

Slump describes the very ______of soil and regolith.

Correct AnswerverifiedShow Answer

A ______ mechanism, such as heavy rains or an earthquake, are sometimes instrumental in causing mass wasting to occur.

Correct AnswerverifiedShow Answer

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Correct AnswerverifiedShow Answer

Which term denotes the true soil above the zone of partly weathered bedrock?

Correct AnswerverifiedShow Answer

Why is soil structure important to know?

Correct AnswerverifiedShow Answer

What is the feature labeled "A" in the diagram below? Also, how did it form?

Correct AnswerverifiedTalus slope. Rocks fell from t...View AnswerShow Answer

A mass wasting process that involves rapid down- slope movement of debris aided by a cushion of air is called______ .

Correct AnswerverifiedShow Answer

Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Correct AnswerverifiedShow Answer

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Talus slope. Rocks fell from t...
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