Question 1

Abrasion is usually confined to a zone that extends up to ________ above the ground.

Accepted Answer

A)  1 cm (0.39 in) 
B)  1 m (3.28 ft) 
C)  5 m (16.4 ft) 
D)  10 m (32.4 ft) 
A)  1 cm (0.39 in) 
B)  1 m (3.28 ft) 
C)  5 m (16.4 ft) 
D)  10 m (32.4 ft)

Question 2

Desertification is not caused by which of the following?

Accepted Answer

A)  overgrazing 
B)  climate change 
C)  erosion and salinization of crop land 
D)  deforestation 
E)  all of the above cause desertification 
A)  overgrazing 
B)  climate change 
C)  erosion and salinization of crop land 
D)  deforestation 
E)  all of the above cause desertification

Question 3

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

Accepted Answer

A)  wash 
B)  wadi 
C)  arroyo 
D)  all of these 
A)  wash 
B)  wadi 
C)  arroyo 
D)  all of these

Question 4

Desert pavement refers to

Accepted Answer

A)  specially constructed roadbeds in dry and hot regions. 
B)  surfaces of concentrated pebbles and gravels that are produced by particle removal and water-delivered cementing materials. 
C)  surfaces that evidently were not affected by the 1991 Persian Gulf War. 
D)  sand-covered surfaces. 
A)  specially constructed roadbeds in dry and hot regions. 
B)  surfaces of concentrated pebbles and gravels that are produced by particle removal and water-delivered cementing materials. 
C)  surfaces that evidently were not affected by the 1991 Persian Gulf War. 
D)  sand-covered surfaces.

Question 5

Alluvial fans often serve as groundwater sources.

Accepted Answer

A) True 
 B)False

Question 6

Relative to dune movement and form, a dune's slipface forms on which side?

Accepted Answer

A)  leeward side 
B)  windward side 
C)  freedune side 
D)  none of these 
A)  leeward side 
B)  windward side 
C)  freedune side 
D)  none of these

Question 7

The impact of saltating particles acts to

Accepted Answer

A)  initiate the movement of other particles. 
B)  suppress the movement of other particles. 
C)  abrade surfaces. 
D)  both A and C 
E)  both B and C 
A)  initiate the movement of other particles. 
B)  suppress the movement of other particles. 
C)  abrade surfaces. 
D)  both A and C 
E)  both B and C

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

Desertification is caused by

Accepted Answer

A)  poor agricultural practices. 
B)  deforestation. 
C)  global climate change. 
D)  all of these 
A)  poor agricultural practices. 
B)  deforestation. 
C)  global climate change. 
D)  all of these

Question 10

Dry, arid climates occupy approximately what percentage of Earth's land surface?

Accepted Answer

A)  5 percent 
B)  10 percent 
C)  26 percent, and as much as 35 percent if all semiarid climates are considered 
D)  65 percent 
A)  5 percent 
B)  10 percent 
C)  26 percent, and as much as 35 percent if all semiarid climates are considered 
D)  65 percent

Question 11

The lowering of the land surface by the lifting and removal of material is termed ________, whereas the grinding of rock surfaces with a "sandblasting" action is ________.

Accepted Answer

A)  abrasion; deflation 
B)  deflation; abrasion 
C)  saltation; abrasion 
D)  mass wasting; deflation 
A)  abrasion; deflation 
B)  deflation; abrasion 
C)  saltation; abrasion 
D)  mass wasting; deflation

Question 12

The Persian Gulf War resulted in the disruption and destruction of thousands of square kilometers of desert pavement.

Accepted Answer

A) True 
 B)False

Question 13

Small particles are difficult for wind to move because

Accepted Answer

A)  although they are small, they have a higher density than many of the larger sized particles in a desert environment. 
B)  they are aerodynamic. 
C)  they tend to be cohesive. 
D)  all of these 
E)  They are aerodynamic and cohesive only. 
A)  although they are small, they have a higher density than many of the larger sized particles in a desert environment. 
B)  they are aerodynamic. 
C)  they tend to be cohesive. 
D)  all of these 
E)  They are aerodynamic and cohesive only.

Question 14

The major erosional force in the desert is

Accepted Answer

A)  wind. 
B)  the eolian process. 
C)  water and fluvial processes. 
D)  human activity. 
A)  wind. 
B)  the eolian process. 
C)  water and fluvial processes. 
D)  human activity.

Question 15

As deltas are depositional features of fluvial processes, so ________ are depositional features of eolian (wind) processes.

Accepted Answer

A)  canyons 
B)  landslides 
C)  moraines 
D)  dunes 
A)  canyons 
B)  landslides 
C)  moraines 
D)  dunes

Question 16

A ventifact can be used to determine the dominant wind direction in an area.

Accepted Answer

A) True 
 B)False

Question 17

What size material composes the dust in a dust storm that extends thousands of feet above the ground?

Accepted Answer

A)  sand 
B)  silts and clays 
C)  gravels 
D)  sand, silts, and clays 
A)  sand 
B)  silts and clays 
C)  gravels 
D)  sand, silts, and clays

Question 18

Which of the following characterizations regarding Colorado River discharges and annual budgets is correct?

Accepted Answer

A)  There are adequate average flows (1930-1980) in the system to meet the Compact (1923) and Mexican Water Treaty (1944) allotments. 
B)  The reservoirs that are in operation experience insignificant losses of water due to rock storage and evaporation. 
C)  The average flows in the second half of this century are more than double the budgeted amount. 
D)  The river system is about 3.5 million acre-feet in deficit from meeting annual budgets based on average flows from 1930 to 1980. 
A)  There are adequate average flows (1930-1980) in the system to meet the Compact (1923) and Mexican Water Treaty (1944) allotments. 
B)  The reservoirs that are in operation experience insignificant losses of water due to rock storage and evaporation. 
C)  The average flows in the second half of this century are more than double the budgeted amount. 
D)  The river system is about 3.5 million acre-feet in deficit from meeting annual budgets based on average flows from 1930 to 1980.

Question 19

Which of the following is false regarding loess?

Accepted Answer

A)  It consists of fine-grained clays and silts and can form vertical cliffs. 
B)  It serves as good agricultural land. 
C)  It is derived from glacial outwash plains or deserts. 
D)  It has low binding strength. 
A)  It consists of fine-grained clays and silts and can form vertical cliffs. 
B)  It serves as good agricultural land. 
C)  It is derived from glacial outwash plains or deserts. 
D)  It has low binding strength.

Question 20

Which of the following surface conditions would limit the effectiveness of wind as an erosional agent?

Accepted Answer

A)  Surface materials that are noncohesive. 
B)  Surface materials consisting of clay-sized particles. 
C)  Surface materials that are dry. 
D)  Surfaces covered with little or no vegetation. 
A)  Surface materials that are noncohesive. 
B)  Surface materials consisting of clay-sized particles. 
C)  Surface materials that are dry. 
D)  Surfaces covered with little or no vegetation.

Abrasion is usually confined to a zone that extends up to ________ above the ground.

Desertification is not caused by which of the following?

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

Desert pavement refers to

Alluvial fans often serve as groundwater sources.

Relative to dune movement and form, a dune's slipface forms on which side?

The impact of saltating particles acts to

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

Desertification is caused by

Dry, arid climates occupy approximately what percentage of Earth's land surface?

The lowering of the land surface by the lifting and removal of material is termed , whereas the grinding of rock surfaces with a "sandblasting" action is .

The Persian Gulf War resulted in the disruption and destruction of thousands of square kilometers of desert pavement.

Small particles are difficult for wind to move because

The major erosional force in the desert is

As deltas are depositional features of fluvial processes, so ________ are depositional features of eolian (wind) processes.

A ventifact can be used to determine the dominant wind direction in an area.

What size material composes the dust in a dust storm that extends thousands of feet above the ground?

Which of the following characterizations regarding Colorado River discharges and annual budgets is correct?

Which of the following is false regarding loess?

Which of the following surface conditions would limit the effectiveness of wind as an erosional agent?

Foundations of Geography

Solar Energy, Seasons, and the Atmosphere

Atmospheric Energy and Global Temperatures

Atmospheric and Oceanic Circulation

Atmospheric Water and Weather

Water Resources

Global Climate Systems

The Dynamic Planet

Earthquakes and Volcanoes

Weathering, Karst Landscapes, and Mass Movement

The Oceans, Coastal Processes, and Landforms

Glacial and Penglacial Landscapes

The Geography of Soils

Ecosystems and Biomes

Earth and the Human Denominator

Filters

Exam 12: Wind Processes and Desert Landscapes

Abrasion is usually confined to a zone that extends up to ________ above the ground.

Desertification is not caused by which of the following?

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

Desert pavement refers to

Alluvial fans often serve as groundwater sources.

Relative to dune movement and form, a dune's slipface forms on which side?

The impact of saltating particles acts to

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

Desertification is caused by

Dry, arid climates occupy approximately what percentage of Earth's land surface?

The lowering of the land surface by the lifting and removal of material is termed ________, whereas the grinding of rock surfaces with a "sandblasting" action is ________.

The Persian Gulf War resulted in the disruption and destruction of thousands of square kilometers of desert pavement.

Small particles are difficult for wind to move because

The major erosional force in the desert is

As deltas are depositional features of fluvial processes, so ________ are depositional features of eolian (wind) processes.

A ventifact can be used to determine the dominant wind direction in an area.

What size material composes the dust in a dust storm that extends thousands of feet above the ground?

Which of the following characterizations regarding Colorado River discharges and annual budgets is correct?

Which of the following is false regarding loess?

Which of the following surface conditions would limit the effectiveness of wind as an erosional agent?

Foundations of Geography

Solar Energy, Seasons, and the Atmosphere

Atmospheric Energy and Global Temperatures

Atmospheric and Oceanic Circulation

Atmospheric Water and Weather

Water Resources

Global Climate Systems

The Dynamic Planet

Earthquakes and Volcanoes

Weathering, Karst Landscapes, and Mass Movement

The Oceans, Coastal Processes, and Landforms

Glacial and Penglacial Landscapes

The Geography of Soils

Ecosystems and Biomes

Earth and the Human Denominator

Filters

The lowering of the land surface by the lifting and removal of material is termed , whereas the grinding of rock surfaces with a "sandblasting" action is .