Question 1

The angle of repose typically ranges from 15° to 30° from horizontal.

Accepted Answer

A) True 
 B)False

Question 2

After a threshold is crossed, the landscape

Accepted Answer

A)   remains unstable thereafter.
B)   adjusts to a new equilibrium condition.
C)   looks identical to the landscape that existed prior to the crossing of the threshold.
D)   returns to the conditions that existed prior to the crossing the threshold.E) A) and B)
F) C) and D)

Question 3

All processes that cause reduction and rearrangement of landforms are included in the term

Accepted Answer

A)   mass movement.
B)   erosion.
C)   weathering.
D)   denudation.E) A) and B)
F) B) and C)

Question 4

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

Accepted Answer

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

Question 5

These rounded granite outcrops are the result of which weathering process?

Accepted Answer

A)   oxidation
B)   hydration
C)   spheroidal weathering
D)   carbonationE) C) and D)
F) All of the above

Question 6

Major karst regions occur on every continent on Earth.

Accepted Answer

A) True 
 B)False

Question 7

The process that breaks down rock at the Earth's surface through disintegration of rocks into mineral particles or dissolving it into water is known as

Accepted Answer

A)   erosion.
B)   mass movement.
C)   landmass denudation.
D)   weathering.E) A) and C)
F) C) and D)

Question 8

Discuss the dynamic equilibrium model and the concept of geomorphic threshold.

Accepted Answer

The dynamic equilibrium model is based o...

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

The angle of repose represents a balance between gravity and friction and shear.

Accepted Answer

A) True 
 B)False

Question 11

When rock is broken down and disintegrated without any chemical alterations, the process in operation is

Accepted Answer

A)   physical weathering.
B)   chemical weathering.
C)   hydrolysis.
D)   carbonation.E) A) and D)
F) B) and C)

Question 12

Because the climate of a region slowly changes and tectonic adjustments slowly occur, the landscape

Accepted Answer

A)   is constantly at a threshold condition.
B)   is continuously adjusting to new conditions that develop.
C)   is usually in a state of dynamic equilibrium.
D)   is constantly at a threshold, continuously adjusting, and in a state of dynamic equilibrium.
E)   is continuously adjusting, and in a state of dynamic equilibrium, but not constantly at a threshold.F) B) and C)
G) A) and D)

Question 13

Chemical weathering always occurs in the presence of water.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is correct regarding joints?

Accepted Answer

A)   Joints are small, localized fault planes along which movement occurs.
B)   Joint impede both physical and chemical weathering.
C)   Joints decrease the amount of exposed surface area of rocks.
D)   Joints are fractures in rock that occur without displacement on either side.E) None of the above
F) B) and D)

Question 15

Landscapes in a dynamic equilibrium show ongoing adaptations to ongoing changes occurring in a landscape.

Accepted Answer

A) True 
 B)False

Question 16

On a typical hillside, the consolidated rock overlain by loose surface material is known as

Accepted Answer

A)   bedrock.
B)   regolith.
C)   parent material.
D)   outcrop.E) A) and B)
F) None of the above

Question 17

The downslope movement of a body of material made up of soil, sediment, or rock propelled by the force of gravity is known as

Accepted Answer

A)   lahar.
B)   downslope flow.
C)   mass movement.
D)   slide.E) A) and C)
F) B) and D)

Question 18

The yellow-red stains that occur on some rock surfaces are the result of ________ which is a form of ________ weathering.

Accepted Answer

A)   hydration; physical
B)   hydration; chemical
C)   solution; chemical
D)   oxidation; physical
E)   oxidation; chemicalF) B) and C)
G) D) and E)

Question 19

The driving force of mass movement is gravity.

Accepted Answer

A) True 
 B)False

Question 20

The angle of repose represent a balance between the driving force and resisting force. Which of the following is the driving force?

Accepted Answer

A)   friction
B)   shear
C)   gravity
D)   inertiaE) All of the above
F) A) and B)

Exam 14: Weathering, Karst Landscapes, and Mass Movement

The process that breaks down rock at the Earth's surface through disintegration of rocks into mineral particles or dissolving it into water is known as

Correct AnswerverifiedShow Answer

Because the climate of a region slowly changes and tectonic adjustments slowly occur, the landscape

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Chemical weathering always occurs in the presence of water.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is correct regarding joints?

Correct AnswerverifiedShow Answer

On a typical hillside, the consolidated rock overlain by loose surface material is known as

Correct AnswerverifiedShow Answer

Discuss the dynamic equilibrium model and the concept of geomorphic threshold.

Correct AnswerverifiedThe dynamic equilibrium model is based o...View AnswerShow Answer

The angle of repose represent a balance between the driving force and resisting force. Which of the following is the driving force?

Correct AnswerverifiedShow Answer

The yellow-red stains that occur on some rock surfaces are the result of ________ which is a form of ________ weathering.

Correct AnswerverifiedShow Answer

Major karst regions occur on every continent on Earth.

Correct AnswerverifiedShow Answer

All processes that cause reduction and rearrangement of landforms are included in the term

Correct AnswerverifiedShow Answer

The angle of repose represents a balance between gravity and friction and shear.

Correct AnswerverifiedShow Answer

Landscapes in a dynamic equilibrium show ongoing adaptations to ongoing changes occurring in a landscape.

Correct AnswerverifiedShow Answer

The angle of repose typically ranges from 15° to 30° from horizontal.

Correct AnswerverifiedShow Answer

After a threshold is crossed, the landscape

Correct AnswerverifiedShow Answer

The downslope movement of a body of material made up of soil, sediment, or rock propelled by the force of gravity is known as

Correct AnswerverifiedShow Answer

The driving force of mass movement is gravity.

Correct AnswerverifiedShow Answer

These rounded granite outcrops are the result of which weathering process?

Correct AnswerverifiedShow Answer

When rock is broken down and disintegrated without any chemical alterations, the process in operation is

Correct AnswerverifiedShow Answer

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The dynamic equilibrium model is based o...
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The yellow-red stains that occur on some rock surfaces are the result of which is a form of weathering.

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