Question 1

A desert pavement surface is associated with which of the following types of deserts?

Accepted Answer

A) erg 
B) sand sea 
C) reg 
D) polar desert 
A) erg 
B) sand sea 
C) reg 
D) polar desert

Question 2

A continuous depositional apron,or ________,may form if individual alluvial fans coalesce into one sloping surface.This feature contrasts with a ________,which is an erosional surface along a mountain front where bedrock is covered by a thin veneer of alluvium.

Accepted Answer

A) bajada pediment 
B) pediment bajada 
C) playa bolson 
D) horst graben 
E) nickpoint terrace 
A) bajada pediment 
B) pediment bajada 
C) playa bolson 
D) horst graben 
E) nickpoint terrace

Question 3

The dust in a dust storm consists primarily of wind-blown sand.

Accepted Answer

A) True 
 B)False

Question 4

The Atacama Desert is one of the world's driest regions and is located on the southwest coast of Africa.

Accepted Answer

A) True 
 B)False

Question 5

The formation of desert pavement

Accepted Answer

A) involves both wind and water. 
B) is produced by abrasion only. 
C) is not related to deflation. 
D) involves wind processes only. 
E) requires freezing temperatures 
A) involves both wind and water. 
B) is produced by abrasion only. 
C) is not related to deflation. 
D) involves wind processes only. 
E) requires freezing temperatures

Question 6

Which of the following correctly describes a dry stream bed that is intermittently filled with water?

Accepted Answer

A) gully 
B) arete 
C) arroyo 
D) sastrugi 
E) rill 
A) gully 
B) arete 
C) arroyo 
D) sastrugi 
E) rill

Question 7

Which of the following is true of loess?

Accepted Answer

A) it consists of fine-grained clays and silts and can form vertical cliffs. 
B) it makes for poor quality agricultural land. 
C) it is derived only from glacial outwash plains or deserts. 
D) it has low binding strength. 
E) it is found in very few,small locations globally. 
A) it consists of fine-grained clays and silts and can form vertical cliffs. 
B) it makes for poor quality agricultural land. 
C) it is derived only from glacial outwash plains or deserts. 
D) it has low binding strength. 
E) it is found in very few,small locations globally.

Question 8

The wind has relatively minor effects on weathering and erosion.

Accepted Answer

A) True 
 B)False

Question 9

Compared to other geomorphic agents,wind is ________ effective at eroding and transporting materials because its density is ________ than that of other geomorphic agents.

Accepted Answer

A) more more 
B) more less 
C) less more 
D) less less 
E) equally more 
A) more more 
B) more less 
C) less more 
D) less less 
E) equally more

Question 10

For purposes of discussing eolian processes,the wind acts like a

Accepted Answer

A) solid. 
B) gas. 
C) plasma. 
D) fluid. 
E) liquid 
A) solid. 
B) gas. 
C) plasma. 
D) fluid. 
E) liquid

Question 11

Addition of more dams on the Colorado River would result in ________ available water because ________.

Accepted Answer

A) more of the obvious fact that dams create reservoirs which store water that would otherwise flow into the sea 
B) less some of the impounded water would seep into rock and become unavailable 
C) more less of the water would evaporate 
D) more the pressure head from the surrounding area would force groundwater to flow into the area. 
A) more of the obvious fact that dams create reservoirs which store water that would otherwise flow into the sea 
B) less some of the impounded water would seep into rock and become unavailable 
C) more less of the water would evaporate 
D) more the pressure head from the surrounding area would force groundwater to flow into the area.

Question 12

A sand sea is also known as a reg desert.

Accepted Answer

A) True 
 B)False

Question 13

Buttes,mesas,and inselbergs represent

Accepted Answer

A) pinnacles of rock and rock masses that were uplifted by compressional forces. 
B) erosional remnants of a once extensive and continuous rock layer. 
C) erosional remnants of vertically tilted strata. 
D) the erosional remnants of volcanoes (i.e. ,volcanic necks). 
A) pinnacles of rock and rock masses that were uplifted by compressional forces. 
B) erosional remnants of a once extensive and continuous rock layer. 
C) erosional remnants of vertically tilted strata. 
D) the erosional remnants of volcanoes (i.e. ,volcanic necks).

Question 14

Soils formed from loess tend to be infertile.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is correct regarding the Basin and Range Province?

Accepted Answer

A) the ridges and valleys are a product of intense folding. 
B) the present landscape is a sequence of sills and dikes. 
C) the area covers 800 000 $ \mathrm{km}^{2} $n the western United States. 
D) it is characterized by a series of overthrust folds. 
A) the ridges and valleys are a product of intense folding. 
B) the present landscape is a sequence of sills and dikes. 
C) the area covers 800 000 $ \mathrm{km}^{2} $n the western United States. 
D) it is characterized by a series of overthrust folds.

Question 16

Which side of a dune typically has a slope angle equal to that of the angle of repose for sand?

Accepted Answer

A) windward 
B) leeward 
C) stoss 
D) top 
E) brink 
A) windward 
B) leeward 
C) stoss 
D) top 
E) brink

Question 17

On the desert floor,at locally low elevations,an intermittently wet-and-dry flat area in a region of closed (interior)drainage is called a(n)

Accepted Answer

A) wash. 
B) wadi. 
C) playa. 
D) arroyo. 
E) bajada 
A) wash. 
B) wadi. 
C) playa. 
D) arroyo. 
E) bajada

Question 18

Loess deposits occur worldwide on every major continent other than Antarctica.

Accepted Answer

A) True 
 B)False

Question 19

If several alluvial fans merge together,a ________ is formed.

Accepted Answer

A) pediment 
B) bajada 
C) playa 
D) yardang 
E) desert pavement 
A) pediment 
B) bajada 
C) playa 
D) yardang 
E) desert pavement

Question 20

The removal and lifting of individual loose particles by the wind is termed

Accepted Answer

A) deflation. 
B) abrasion. 
C) saltation. 
D) deposition. 
E) aggradation 
A) deflation. 
B) abrasion. 
C) saltation. 
D) deposition. 
E) aggradation

Exam 15: Eolian Processes and Arid Landscapes

A desert pavement surface is associated with which of the following types of deserts?

A continuous depositional apron,or ________,may form if individual alluvial fans coalesce into one sloping surface.This feature contrasts with a ________,which is an erosional surface along a mountain front where bedrock is covered by a thin veneer of alluvium.

The dust in a dust storm consists primarily of wind-blown sand.

The Atacama Desert is one of the world's driest regions and is located on the southwest coast of Africa.

The formation of desert pavement

Which of the following correctly describes a dry stream bed that is intermittently filled with water?

Which of the following is true of loess?

The wind has relatively minor effects on weathering and erosion.

Compared to other geomorphic agents,wind is ________ effective at eroding and transporting materials because its density is ________ than that of other geomorphic agents.

For purposes of discussing eolian processes,the wind acts like a

Addition of more dams on the Colorado River would result in ________ available water because ________.

A sand sea is also known as a reg desert.

Buttes,mesas,and inselbergs represent

Soils formed from loess tend to be infertile.

Which of the following is correct regarding the Basin and Range Province?

Which side of a dune typically has a slope angle equal to that of the angle of repose for sand?

On the desert floor,at locally low elevations,an intermittently wet-and-dry flat area in a region of closed (interior)drainage is called a(n)

Loess deposits occur worldwide on every major continent other than Antarctica.

If several alluvial fans merge together,a ________ is formed.

The removal and lifting of individual loose particles by the wind is termed

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A continuous depositional apron,or ,may form if individual alluvial fans coalesce into one sloping surface.This feature contrasts with a ,which is an erosional surface along a mountain front where bedrock is covered by a thin veneer of alluvium.

Compared to other geomorphic agents,wind is effective at eroding and transporting materials because its density is than that of other geomorphic agents.

Addition of more dams on the Colorado River would result in available water because .