Question 1

Mechanical and chemical weathering usually work together.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is NOT associated with biological weathering?

Accepted Answer

A)   expansion of rock cracks by tree roots
B)   flaking of rock particles because of lichens present
C)   leaching of nutrient minerals from rocks
D)   disintegration of rock by burrowing animals
E)   formation of rock jointsF) C) and D)
G) A) and C)

Question 3

A slope collapse with a backward rotation is a ________.

Accepted Answer

A)   talus slope
B)   rock slide
C)   debris flow
D)   rock glacier
E)   slumpF) C) and E)
G) B) and C)

Question 4

When fragments deposited by mass movement are at the ________, they are in a fine balance between the pull of gravity and the cohesion and friction of the rock material.

Accepted Answer

The answer of When fragments deposited by mass movement are...

Question 5

The main downslope movement of subarctic and arctic landscapes is ________.

Accepted Answer

A)   permafrost
B)   mass wasting
C)   mudslide
D)   rock glacier
E)   solifluctionF) B) and D)
G) C) and D)

Question 6

A weathering type associated with curved and concentric sets of joints that break away in successive layers is called ________.

Accepted Answer

A)   exfoliation
B)   hydrolysis
C)   landslide
D)   creep
E)   solifluctionF) B) and C)
G) A) and B)

Question 7

Which of the following mass movements involves the greatest amount of water?

Accepted Answer

A)   slump
B)   flow
C)   rockfall
D)   slide
E)   solifluctionF) A) and D)
G) C) and D)

Question 8

Mudflows tend to follow the local drainage network.

Accepted Answer

A) True 
 B)False

Question 9

The rotting of rock by the various types of chemical weathering takes place best in ________.

Accepted Answer

A)   polar regions
B)   upland montane forests
C)   arid lands
D)   humid regions
E)   limestone regionsF) A) and C)
G) A) and B)

Question 10

Which of the following must take place FIRST during the denudation of a landscape?

Accepted Answer

A)   weathering
B)   erosion
C)   mass wasting
D)   They must occur simultaneously.
E)   None of them must occur first.F) None of the above
G) A) and C)

Question 11

Typically, solifluction lobes move a few ________ per year.

Accepted Answer

A)   centimeters (inches) 
B)   meters (feet) 
C)   tens of meters (tens of feet) 
D)   kilometers (miles) 
E)   tens of kilometers (tens of miles) F) A) and E)
G) B) and E)

Question 12

Weathering is deepest ________.

Accepted Answer

A)   at high latitudes
B)   in the humid tropics
C)   in the middle latitudes
D)   at high altitudes
E)   on ocean floorsF) A) and B)
G) A) and C)

Question 13

Within 5 percent, the typical angle of repose on talus is ________ percent.

Accepted Answer

The answer of Within 5 percent, the typical angle of...

Question 14

The general term signifying the overall lowering of the rock material on the Earth's crust is ________.

Accepted Answer

A)   denudation
B)   mass wasting
C)   slumping
D)   jointing
E)   weatheringF) A) and B)
G) A) and E)

Question 15

Mass wasting and weathering are synonymous terms.

Accepted Answer

A) True 
 B)False

Question 16

Mass movements are likely to occur after _______.

Accepted Answer

heavy rain...

Question 17

The main chemical weathering processes all take place more or less simultaneously because they all require the presence of ________.

Accepted Answer

A)   water
B)   air
C)   hydrogen
D)   plants
E)   salt crystal growthF) B) and D)
G) A) and B)

Question 18

Explain how salt wedging and frost wedging are alike and unalike.

Accepted Answer

The answer of Explain how salt wedging and frost wedging...

Question 19

From a chemical standpoint, the three reacting agents of greatest importance to weathering are ________.

Accepted Answer

A)   hydrogen, oxygen, and nitrogen
B)   oxygen, nitrogen, and carbon dioxide
C)   carbon dioxide, oxygen, and water vapor
D)   water vapor, nitrogen, and carbon dioxide
E)   none of the aboveF) A) and E)
G) A) and D)

Question 20

Undercutting of a bank by its stream may trigger ________.

Accepted Answer

A)   an earthquake
B)   soil creep
C)   a landslide
D)   movement of a rock glacier
E)   solifluctionF) D) and E)
G) B) and D)

Exam 15: Preliminaries to Erosion: Weathering and Mass Wasting

A weathering type associated with curved and concentric sets of joints that break away in successive layers is called ________.

Correct AnswerverifiedShow Answer

Mass wasting and weathering are synonymous terms.

Correct AnswerverifiedShow Answer

Explain how salt wedging and frost wedging are alike and unalike.

Correct AnswerverifiedShow Answer

Typically, solifluction lobes move a few ________ per year.

Correct AnswerverifiedShow Answer

From a chemical standpoint, the three reacting agents of greatest importance to weathering are ________.

Correct AnswerverifiedShow Answer

A slope collapse with a backward rotation is a ________.

Correct AnswerverifiedShow Answer

Mechanical and chemical weathering usually work together.

Correct AnswerverifiedShow Answer

Undercutting of a bank by its stream may trigger ________.

Correct AnswerverifiedShow Answer

Within 5 percent, the typical angle of repose on talus is ________ percent.

Correct AnswerverifiedShow Answer

Which of the following mass movements involves the greatest amount of water?

Correct AnswerverifiedShow Answer

Weathering is deepest ________.

Correct AnswerverifiedShow Answer

Which of the following must take place FIRST during the denudation of a landscape?

Correct AnswerverifiedShow Answer

When fragments deposited by mass movement are at the ________, they are in a fine balance between the pull of gravity and the cohesion and friction of the rock material.

Correct AnswerverifiedShow Answer

The general term signifying the overall lowering of the rock material on the Earth's crust is ________.

Correct AnswerverifiedShow Answer

The rotting of rock by the various types of chemical weathering takes place best in ________.

Correct AnswerverifiedShow Answer

Mudflows tend to follow the local drainage network.

Correct AnswerverifiedShow Answer

The main downslope movement of subarctic and arctic landscapes is ________.

Correct AnswerverifiedShow Answer

Mass movements are likely to occur after _______.

Correct Answerverifiedheavy rain...View AnswerShow Answer

Which of the following is NOT associated with biological weathering?

Correct AnswerverifiedShow Answer

The main chemical weathering processes all take place more or less simultaneously because they all require the presence of ________.

Correct AnswerverifiedShow Answer

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heavy rain...
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