Question 1

Desertification is most common in the world's richest nations.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following basin and range features would you find in a basin?

Accepted Answer

A) butte 
B) playa 
C) fan delta 
D) sill 
E) horst 
A) butte 
B) playa 
C) fan delta 
D) sill 
E) horst

Question 3

A dune that is the mountainous giant of the sandy deserts is called a

Accepted Answer

A) transverse dune. 
B) longitudinal dune. 
C) parabolic dune. 
D) star dune. 
E) dome dune 
A) transverse dune. 
B) longitudinal dune. 
C) parabolic dune. 
D) star dune. 
E) dome dune

Question 4

Barchan,transverse,and parabolic dunes are all types of crescentic sand dunes.

Accepted Answer

A) True 
 B)False

Question 5

Because linear dunes are formed from ________ winds,they have ________.

Accepted Answer

A) unidirectional one slipface 
B) unidirectional two slipfaces 
C) bidirectional one 
D) bidirectional two slipfaces 
E) multidirectional four slipfaces 
A) unidirectional one slipface 
B) unidirectional two slipfaces 
C) bidirectional one 
D) bidirectional two slipfaces 
E) multidirectional four slipfaces

Question 6

Which of the following is another name for an alluvial fan?

Accepted Answer

A) arroyo 
B) wadi 
C) foggara 
D) gibber plain 
E) seif 
A) arroyo 
B) wadi 
C) foggara 
D) gibber plain 
E) seif

Question 7

An extensive area of sand and sand dunes is known as a(n)

Accepted Answer

A) reg desert. 
B) erg desert,or sand sea. 
C) lag desert. 
D) desert pavement. 
A) reg desert. 
B) erg desert,or sand sea. 
C) lag desert. 
D) desert pavement.

Question 8

Principal arid and semiarid lands only occur on the continental landmasses of the northern hemisphere.

Accepted Answer

A) True 
 B)False

Question 9

Elongated,streamlined ridges aligned parallel to the most effective wind direction are called

Accepted Answer

A) ventifacts. 
B) yardangs. 
C) desert pavements. 
D) alluvial rock structures. 
E) hoodoos 
A) ventifacts. 
B) yardangs. 
C) desert pavements. 
D) alluvial rock structures. 
E) hoodoos

Question 10

Soil erosion by wind that occurs when vegetation is removed is known as abrasion.

Accepted Answer

A) True 
 B)False

Question 11

How is a yardang formed?

Accepted Answer

A yardang is a streamlined, wind-sculpte

Question 12

A survey of the sensitivity of dune areas in Canada that will be affected by climate change indicated that

Accepted Answer

A) there will be little change to most regions of the country. 
B) regions of increased aridity are likely to experience significant increases in dune activity. 
C) regions of great sensitivity will experience increased precipitation and become too wet for agricultural activities. 
D) the Arctic region will be unaffected. 
E) eastern Canada will remain unaffected by this change. 
A) there will be little change to most regions of the country. 
B) regions of increased aridity are likely to experience significant increases in dune activity. 
C) regions of great sensitivity will experience increased precipitation and become too wet for agricultural activities. 
D) the Arctic region will be unaffected. 
E) eastern Canada will remain unaffected by this change.

Question 13

A characteristic cone-shaped depositional feature in the desert that usually forms at the mouth of a canyon is known as a(n)

Accepted Answer

A) bajada. 
B) playa. 
C) bolson. 
D) alluvial fan. 
E) wadi. 
A) bajada. 
B) playa. 
C) bolson. 
D) alluvial fan. 
E) wadi.

Question 14

A common crescent-shaped dune with horns pointed downwind is called a

Accepted Answer

A) transverse dune. 
B) longitudinal dune. 
C) seif dune. 
D) barchan dune. 
E) parabolic dune. 
A) transverse dune. 
B) longitudinal dune. 
C) seif dune. 
D) barchan dune. 
E) parabolic dune.

Question 15

Active and stable sand regions occur on every major continent except Antarctica.

Accepted Answer

A) True 
 B)False

Question 16

The often-sited work on eolian processes is The Physics of Blown Sand and Desert Dunes written by

Accepted Answer

A) William Morris Davis. 
B) John Wesley Powell. 
C) Ralph A.Bagnold. 
D) Edward Abbey. 
E) J)H.Mackin 
A) William Morris Davis. 
B) John Wesley Powell. 
C) Ralph A.Bagnold. 
D) Edward Abbey. 
E) J)H.Mackin

Question 17

Desertification is a global political issue because

Accepted Answer

A) local poverty and inability to change subsistence agricultural practices is being exacerbated by the poleward shift of subtropical high pressure systems due to climate change. 
B) climate change means that all of the surface of Earth is subject to increased temperatures and possible shift to desert conditions. 
C) desert areas are all in Africa and there are adequate environmental policies to manage them. 
D) low population numbers in desert areas mean that people in other areas will have to manage the arid lands. 
E) there is an excellent database of arid lands,but the problem is not well understood. 
A) local poverty and inability to change subsistence agricultural practices is being exacerbated by the poleward shift of subtropical high pressure systems due to climate change. 
B) climate change means that all of the surface of Earth is subject to increased temperatures and possible shift to desert conditions. 
C) desert areas are all in Africa and there are adequate environmental policies to manage them. 
D) low population numbers in desert areas mean that people in other areas will have to manage the arid lands. 
E) there is an excellent database of arid lands,but the problem is not well understood.

Question 18

Which two processes create desert pavement?

Accepted Answer

A) deflation and sheet wash. 
B) deflation and abrasion. 
C) abrasion and sheet wash. 
D) deflation and saltation. 
E) saltation and abrasion. 
A) deflation and sheet wash. 
B) deflation and abrasion. 
C) abrasion and sheet wash. 
D) deflation and saltation. 
E) saltation and abrasion.

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

Which is true regarding the processes that create desert pavement?

Accepted Answer

A) it is produced by ablation. 
B) it is produced by ice delivered cementing materials. 
C) it is produced by wind removing sand particles from the surface. 
D) it is produced by saltation. 
E) it is produced by continuous high winds. 
A) it is produced by ablation. 
B) it is produced by ice delivered cementing materials. 
C) it is produced by wind removing sand particles from the surface. 
D) it is produced by saltation. 
E) it is produced by continuous high winds.

Exam 15: Eolian Processes and Arid Landscapes

Desertification is most common in the world's richest nations.

Which of the following basin and range features would you find in a basin?

A dune that is the mountainous giant of the sandy deserts is called a

Barchan,transverse,and parabolic dunes are all types of crescentic sand dunes.

Because linear dunes are formed from ________ winds,they have ________.

Which of the following is another name for an alluvial fan?

An extensive area of sand and sand dunes is known as a(n)

Principal arid and semiarid lands only occur on the continental landmasses of the northern hemisphere.

Elongated,streamlined ridges aligned parallel to the most effective wind direction are called

Soil erosion by wind that occurs when vegetation is removed is known as abrasion.

How is a yardang formed?

A survey of the sensitivity of dune areas in Canada that will be affected by climate change indicated that

A characteristic cone-shaped depositional feature in the desert that usually forms at the mouth of a canyon is known as a(n)

A common crescent-shaped dune with horns pointed downwind is called a

Active and stable sand regions occur on every major continent except Antarctica.

The often-sited work on eolian processes is The Physics of Blown Sand and Desert Dunes written by

Desertification is a global political issue because

Which two processes create desert pavement?

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

Which is true regarding the processes that create desert pavement?

Essentials of Geography

Solar Energy to Earth and the Seasons

Earth's Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Climate Systems and Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems and Landforms

The Oceans, Coastal Processes, and Landforms

Glacial and Periglacial Processes and Landforms

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

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Because linear dunes are formed from winds,they have .