Question 1

Plants are important to the development of karst primarily because

Accepted Answer

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

Question 2

Cones and cockpit karst develop in

Accepted Answer

A)  wet tropical areas.
B)  polar regions.
C)  arid regions.
D)  cold,midlatitude climates.E) A) and B)
F) A) and C)

Question 3

A translational slide involves

Accepted Answer

A)  rotational movement of surface material.
B)  unconsolidated flow of material.
C)  mudflow.
D)  movement of surface material along a planar surface.E) C) and D)
F) A) and B)

Question 4

Karst topography is an example of chemical weathering occurring over entire landscapes.

Accepted Answer

A) True 
 B)False

Question 5

The weathering of limestone can create circular depressions known as

Accepted Answer

A)  sinkholes.
B)  stalactites.
C)  uvalas.
D)  caverns.E) A) and C)
F) B) and C)

Question 6

Vegetation is necessary for the development of karst topography.

Accepted Answer

A) True 
 B)False

Question 7

Exfoliation occurs because

Accepted Answer

A)  water freezes in joints and expands.
B)  water combines with minerals and increases their size,thereby causing surrounding minerals to expand.
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) A) and B)
F) B) and C)

Question 8

The science that specifically studies the origin,evolution,form,and spatial distribution of landforms is

Accepted Answer

A)  geomorphology.
B)  environmental chemistry.
C)  geology.
D)  geography.E) A) and C)
F) A) and B)

Question 9

Continuing dissolution and collapse may lead the the coalescing of sinkholes to form a

Accepted Answer

A)  rise.
B)  disappearing stream.
C)  doline.
D)  karst valley.E) A) and D)
F) B) and D)

Question 10

Which of the following is NOT necessary for well-developed karst to develop?

Accepted Answer

A)  Arid conditions
B)  High proportion of calcium carbonate in the rock
C)  Vegetation
D)  Joints in rock of otherwise low permeabilityE) A) and C)
F) A) and B)

Question 11

A watery mix of falling and tumbling rock,debris,and soil is a

Accepted Answer

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

Question 12

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)  high tablelands.
C)  karst topography.
D)  basins.E) All 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)  hydrolysis.
D)  hydration.E) C) and D)
F) B) and D)

Question 14

Major karst regions occur on every continent on Earth.

Accepted Answer

A) True 
 B)False

Question 15

Other than the rock itself,the most important chemical substance needed for the majority of weathering processes is

Accepted Answer

A)  water.
B)  nitrogen.
C)  carbon dioxide.
D)  oxygen.E) A) and D)
F) A) and B)

Question 16

Hydration involves

Accepted Answer

A)  the addition of water with little chemical change.
B)  salt crystal growth from evaporation.
C)  frost action.
D)  the chemical reaction of water.E) A) and D)
F) All of the above

Question 17

As weathering mechanisms,how does hydration differ from hydrolysis?

Accepted Answer

Hydration involves little chemical chang...

Question 18

In order for a limestone landscape to develop into karst topography,the limestone formation must contain at least 30% of calcium carbonate.

Accepted Answer

A) True 
 B)False

Question 19

Hydration does not result in the formation of new chemical compounds,whereas hydrolysis produces a different mineral through a chemical reaction.

Accepted Answer

A) True 
 B)False

Question 20

Karst topography is formed primarily by

Accepted Answer

A)  mass wasting processes.
B)  oxidation and hydrolysis.
C)  carbonation and solution.
D)  exfoliation and hydration.E) A) and B)
F) A) and C)

Exam 11: Landmass Denudation

The science that specifically studies the origin,evolution,form,and spatial distribution of landforms is

Correct AnswerverifiedShow Answer

In order for a limestone landscape to develop into karst topography,the limestone formation must contain at least 30% of calcium carbonate.

Correct AnswerverifiedShow Answer

Which of the following is NOT necessary for well-developed karst to develop?

Correct AnswerverifiedShow Answer

Other than the rock itself,the most important chemical substance needed for the majority of weathering processes is

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

Exfoliation occurs because

Correct AnswerverifiedShow Answer

Hydration involves

Correct AnswerverifiedShow Answer

Major karst regions occur on every continent on Earth.

Correct AnswerverifiedShow Answer

Continuing dissolution and collapse may lead the the coalescing of sinkholes to form a

Correct AnswerverifiedShow Answer

Vegetation is necessary for the development of karst topography.

Correct AnswerverifiedShow Answer

Karst topography is an example of chemical weathering occurring over entire landscapes.

Correct AnswerverifiedShow Answer

Karst topography is formed primarily by

Correct AnswerverifiedShow Answer

A translational slide involves

Correct AnswerverifiedShow Answer

Hydration does not result in the formation of new chemical compounds,whereas hydrolysis produces a different mineral through a chemical reaction.

Correct AnswerverifiedShow Answer

As weathering mechanisms,how does hydration differ from hydrolysis?

Correct AnswerverifiedHydration involves little chemical chang...View AnswerShow Answer

Plants are important to the development of karst primarily because

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Cones and cockpit karst develop in

Correct AnswerverifiedShow Answer

The weathering of limestone can create circular depressions known as

Correct AnswerverifiedShow Answer

A watery mix of falling and tumbling rock,debris,and soil is a

Correct AnswerverifiedShow Answer

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Hydration involves little chemical chang...
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