Question 1

When the upper surface of consolidated rock undergoes constant weathering, it creates broken-up rock called

Accepted Answer

A)   bedrock.
B)   regolith.
C)   parent material.
D)   outcrop.E) B) and C)
F) A) and B)

Question 2

Exfoliation occurs because

Accepted Answer

A)   water combines with minerals and increases their size, thereby causing surrounding minerals to expand.
B)   water freezes in joints and expands.
C)   overlying rock is removed, thereby allowing the underlying rock mass to expand and fracture.
D)   evaporated water leaves behind previously dissolved mineral to form crystals, which accumulate and grow over time, exerting pressure on the rock.E) B) and C)
F) None of the above

Question 3

Debris slopes tend to be steeper in arid climates than in humid climates.

Accepted Answer

A) True 
 B)False

Question 4

If Earth did not experience endogenic processes, the landscape would

Accepted Answer

A)   be rugged and of great relief as a result of uplift in the absence of weathering and erosion.
B)   consist of high mountains and hills with smooth, gentle slopes.
C)   be of very low relief as a result of weathering and erosion in the absence of uplift.D) All of the above
E) None of the above

Question 5

A slope is ________ if its strength exceed denundation processes and ________ if its materials are weaker than denunadation processes.

Accepted Answer

A)   stable; unstable
B)   unstable; stable
C)   in equilibrium; in disequilibrium
D)   in disequilibrium; in equilibriumE) B) and D)
F) B) and C)

Question 6

The sudden rapid movement of an unsaturated cohesive mass of regolith or bedrock is a

Accepted Answer

A)   rockfall.
B)   mudflow.
C)   debris avalanche.
D)   landslide.E) A) and B)
F) C) and D)

Question 7

Stalactites and stalagmites are examples of dripstones.

Accepted Answer

A) True 
 B)False

Question 8

Weathering refers specifically to the physical (mechanical) processes that break down rocks and doesn't include the chemical processes that breakdown rocks.

Accepted Answer

A) True 
 B)False

Question 9

Salt-crystal growth (salt weathering)  is an example of ________ weathering processes.

Accepted Answer

A)   chemical
B)   physical
C)   biological
D)   both biological and physicalE) B) and C)
F) A) and B)

Question 10

Chemical weathering is greatest under conditions of

Accepted Answer

A)   higher rainfall and temperatures.
B)   lower rainfall and temperatures.
C)   higher rainfall, but lower temperatures.
D)   lower rainfall, but higher temperatures.E) None of the above
F) C) and D)

Question 11

Salt crystal growth is most prevalent in humid regions.

Accepted Answer

A) True 
 B)False

Question 12

If material is to move downslope, it must overcome the force of

Accepted Answer

A)   friction.
B)   the cohesion of particles to each other.
C)   inertial resistance of the material.
D)   friction, cohesion of particles, and intertial resistance.E) None of the above
F) A) and B)

Question 13

Weathering that softens and rounds the sharp edges and corners of jointed rock is known as

Accepted Answer

A)   spheroidal weathering.
B)   exfoliation.
C)   hydration.
D)   hydrolis.E) None of the above
F) B) and C)

Question 14

Landscapes return to equilibrium quickly after dramatic events, such as a major landslide.

Accepted Answer

A) True 
 B)False

Question 15

Plants are important to the development of karst primarily because

Accepted Answer

A)   openings adjacent to their roots serve as microchannels that allow water to enter the rock.
B)   the decay of large roots below the surface produces cavities which eventually enlarge to form caves.
C)   they supply organic acids that enhance the dissolution process.
D)   None of the above-plants play no role in the development of karst.E) All of the above
F) None of the above

Question 16

Extensive landscapes formed by the dissolution of limestone and other carbonate rock and characterized by pitted, bumpy surface topography, poor surface drainage, and well developed solutions channels are known as

Accepted Answer

A)   plains.
B)   basins.
C)   karst topography.
D)   high tablelands.E) A) and D)
F) A) and B)

Question 17

Frost wedging is the result of repeated freeze/thaw cycles.

Accepted Answer

A) True 
 B)False

Question 18

Hydrolis involves

Accepted Answer

A)   the chemical reaction of water.
B)   the addition of water with little chemical change.
C)   frost action.
D)   salt crystal growth from evaporation.E) A) and B)
F) None of the above

Question 19

Any large cave formed by chemical processes is a

Accepted Answer

A)   cavern.
B)   doline.
C)   karst valley.
D)   collapse sinkhole.E) None of the above
F) B) and C)

Question 20

Hydrolis, hydration, oxidation, and carbonation are all examples of ________ weathering processes.

Accepted Answer

A)   physical
B)   chemical
C)   biological
D)   physical and biologicalE) A) and B)
F) All of the above

Exam 14: Weathering, Karst Landscapes, and Mass Movement

Chemical weathering is greatest under conditions of

Correct AnswerverifiedShow Answer

When the upper surface of consolidated rock undergoes constant weathering, it creates broken-up rock called

Correct AnswerverifiedShow Answer

Hydrolis, hydration, oxidation, and carbonation are all examples of ________ weathering processes.

Correct AnswerverifiedShow Answer

Frost wedging is the result of repeated freeze/thaw cycles.

Correct AnswerverifiedShow Answer

Salt-crystal growth (salt weathering) is an example of ________ weathering processes.

Correct AnswerverifiedShow Answer

A slope is ________ if its strength exceed denundation processes and ________ if its materials are weaker than denunadation processes.

Correct AnswerverifiedShow Answer

Weathering refers specifically to the physical (mechanical) processes that break down rocks and doesn't include the chemical processes that breakdown rocks.

Correct AnswerverifiedShow Answer

Stalactites and stalagmites are examples of dripstones.

Correct AnswerverifiedShow Answer

Hydrolis involves

Correct AnswerverifiedShow Answer

Plants are important to the development of karst primarily because

Correct AnswerverifiedShow Answer

The sudden rapid movement of an unsaturated cohesive mass of regolith or bedrock is a

Correct AnswerverifiedShow Answer

Debris slopes tend to be steeper in arid climates than in humid climates.

Correct AnswerverifiedShow Answer

Landscapes return to equilibrium quickly after dramatic events, such as a major landslide.

Correct AnswerverifiedShow Answer

Any large cave formed by chemical processes is a

Correct AnswerverifiedShow Answer

Exfoliation occurs because

Correct AnswerverifiedShow Answer

Weathering that softens and rounds the sharp edges and corners of jointed rock is known as

Correct AnswerverifiedShow Answer

If Earth did not experience endogenic processes, the landscape would

Correct AnswerverifiedShow Answer

If material is to move downslope, it must overcome the force of

Correct AnswerverifiedShow Answer

Extensive landscapes formed by the dissolution of limestone and other carbonate rock and characterized by pitted, bumpy surface topography, poor surface drainage, and well developed solutions channels are known as

Correct AnswerverifiedShow Answer

Salt crystal growth is most prevalent in humid regions.

Correct AnswerverifiedShow Answer

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A slope is if its strength exceed denundation processes and if its materials are weaker than denunadation processes.

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