Question 1

Which of the following is not considered a cause of desertification?

Accepted Answer

A) poor agricultural practices 
B) climate change 
C) poor soil-moisture management 
D) salinization 
E) afforestation 
A) poor agricultural practices 
B) climate change 
C) poor soil-moisture management 
D) salinization 
E) afforestation

Question 2

What is loess? How do the loess deposits of North America and Europe vary from those in China?

Accepted Answer

Loess is windblown dust that accumulates

Question 3

What are the mechanisms by which air moves dust and sand?

Accepted Answer

Moving air is a fluid in a manner simila

Question 4

A large region identifiable by several topographic or geological traits is known as a(n)

Accepted Answer

A) topographic region. 
B) ecoregion. 
C) physiographic province. 
D) biome. 
E) alluvial terrace. 
A) topographic region. 
B) ecoregion. 
C) physiographic province. 
D) biome. 
E) alluvial terrace.

Question 5

Active dunes cover approximately ____% of Earth's deserts.

Accepted Answer

A) 10 
B) 27 
C) 45 
D) 63 
E) 80 
A) 10 
B) 27 
C) 45 
D) 63 
E) 80

Question 6

The sliding and rolling along the ground of particles larger than 0.5 mm is known as

Accepted Answer

A) deflation. 
B) abrasion. 
C) saltation. 
D) surface creep. 
E) traction. 
A) deflation. 
B) abrasion. 
C) saltation. 
D) surface creep. 
E) traction.

Question 7

Dune migration on the Navajo Nation in the U.S.Southwest is an example of

Accepted Answer

A) desertification. 
B) woody plant encroachment. 
C) eolian transport. 
D) deflation. 
E) saltation. 
A) desertification. 
B) woody plant encroachment. 
C) eolian transport. 
D) deflation. 
E) saltation.

Question 8

Arid and semiarid climates cover about of Earth's surface.

Accepted Answer

A) three-fourths 
B) a quarter 
C) two-thirds 
D) one-half 
E) one-third 
A) three-fourths 
B) a quarter 
C) two-thirds 
D) one-half 
E) one-third

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

Question 10

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

Accepted Answer

A) solid. 
B) gas. 
C) plasma. 
D) fluid. 
E) degenerate matter. 
A) solid. 
B) gas. 
C) plasma. 
D) fluid. 
E) degenerate matter.

Question 11

(a)Ground view   (b)Aerial view
Dust storms engulf Phoenix,Arizona,in 2013 (ground view)and 2016 (aerial view).

Dust storms,such as one from Arizona in 2013,are caused by downbursts associated with thunderstorms.Such storms are termed

Accepted Answer

A) playas. 
B) deflation. 
C) blowout depression. 
D) ventifacts. 
E) haboobs. 
A) playas. 
B) deflation. 
C) blowout depression. 
D) ventifacts. 
E) haboobs.

Question 12

Cone-shaped deposits of sediment often found at mouth of canyons in arid and semiarid climates are called

Accepted Answer

A) deposition. 
B) deltas. 
C) alluvial fans. 
D) clastics. 
E) arroyos. 
A) deposition. 
B) deltas. 
C) alluvial fans. 
D) clastics. 
E) arroyos.

Question 13

Describe the eolian processes of deflation and abrasion.

Accepted Answer

Erosion on the ground surface resulting

Question 14

The general term for the land degradation in arid and semiarid regions characterized by expansions of deserts is

Accepted Answer

A) desertification. 
B) woody plant encroachment. 
C) eolian process. 
D) deflation. 
E) saltation. 
A) desertification. 
B) woody plant encroachment. 
C) eolian process. 
D) deflation. 
E) saltation.

Question 15

The sediment-accumulation hypothesis of desert pavement formation states

Accepted Answer

A) wind removes fine particles leaving large pebbles,gravels,and rocks,which become consolidated. 
B) wind delivers fine particles that settle and wash downward as cycles of swelling and shrinking cause gravels to migrate upward. 
C) water removes fine particles leaving large pebbles,gravels,and rocks,which become consolidated. 
D) water delivers fine particles that settle and wash downward as cycles of swelling and shrinking cause gravels to migrate upward. 
E) both wind and water remove fine particles leaving large pebbles,gravels,and rocks,which become consolidated. 
A) wind removes fine particles leaving large pebbles,gravels,and rocks,which become consolidated. 
B) wind delivers fine particles that settle and wash downward as cycles of swelling and shrinking cause gravels to migrate upward. 
C) water removes fine particles leaving large pebbles,gravels,and rocks,which become consolidated. 
D) water delivers fine particles that settle and wash downward as cycles of swelling and shrinking cause gravels to migrate upward. 
E) both wind and water remove fine particles leaving large pebbles,gravels,and rocks,which become consolidated.

Question 16

_____are isolated remnants of resistant rock and products of long-term weathering and erosion.

Accepted Answer

A) Mesas 
B) Inselbergs 
C) Badlands 
D) Arroyos 
E) Alluvial fans 
A) Mesas 
B) Inselbergs 
C) Badlands 
D) Arroyos 
E) Alluvial fans

Question 17

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

Question 18

A ____is a dry bed of an ephemeral lake a dryland region.

Accepted Answer

A) star dune 
B) playa. 
C) yardang 
D) desert pavement 
E) bajada 
A) star dune 
B) playa. 
C) yardang 
D) desert pavement 
E) bajada

Question 19

The Aral Sea,once one of the four largest lakes in the world,has steadily decreased since the 1960s on account of

Accepted Answer

A) diversion of incoming rivers for irrigation. 
B) climate change. 
C) urbanization. 
D) hydroelectric production. 
E) deforestation and resulting sedimentation. 
A) diversion of incoming rivers for irrigation. 
B) climate change. 
C) urbanization. 
D) hydroelectric production. 
E) deforestation and resulting sedimentation.

Question 20

Desert pavement refers to

Accepted Answer

A) specially constructed roadbeds in dry and hot regions. 
B) surfaces of concentrated pebbles and gravels. 
C) deposits of silt and clay. 
D) sand-covered surfaces. 
E) any rock shaped by eolian erosion. 
A) specially constructed roadbeds in dry and hot regions. 
B) surfaces of concentrated pebbles and gravels. 
C) deposits of silt and clay. 
D) sand-covered surfaces. 
E) any rock shaped by eolian erosion.

Which of the following is not considered a cause of desertification?

What is loess? How do the loess deposits of North America and Europe vary from those in China?

What are the mechanisms by which air moves dust and sand?

A large region identifiable by several topographic or geological traits is known as a(n)

Active dunes cover approximately ____% of Earth's deserts.

The sliding and rolling along the ground of particles larger than 0.5 mm is known as

Dune migration on the Navajo Nation in the U.S.Southwest is an example of

Arid and semiarid climates cover about of Earth's surface.

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

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

(a)Ground view (b)Aerial view Dust storms engulf Phoenix,Arizona,in 2013 (ground view)and 2016 (aerial view). Dust storms,such as one from Arizona in 2013,are caused by downbursts associated with thunderstorms.Such storms are termed

Cone-shaped deposits of sediment often found at mouth of canyons in arid and semiarid climates are called

Describe the eolian processes of deflation and abrasion.

The general term for the land degradation in arid and semiarid regions characterized by expansions of deserts is

The sediment-accumulation hypothesis of desert pavement formation states

_____are isolated remnants of resistant rock and products of long-term weathering and erosion.

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

A ____is a dry bed of an ephemeral lake a dryland region.

The Aral Sea,once one of the four largest lakes in the world,has steadily decreased since the 1960s on account of

Desert pavement refers to

Essentials of Geography

Solar Energy to Earth and the Seasons

Earth’s Atmosphere

Atmospheric Energy and Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Earth’s Climatic Regions

Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems

Oceans and Coastal Systems

Glacial Landscapes and the Cryosphere

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

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Exam 15: Aeolian Processes and Arid Landscapes

Which of the following is not considered a cause of desertification?

What is loess? How do the loess deposits of North America and Europe vary from those in China?

What are the mechanisms by which air moves dust and sand?

A large region identifiable by several topographic or geological traits is known as a(n)

Active dunes cover approximately ____% of Earth's deserts.

The sliding and rolling along the ground of particles larger than 0.5 mm is known as

Dune migration on the Navajo Nation in the U.S.Southwest is an example of

Arid and semiarid climates cover about of Earth's surface.

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

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

(a)Ground view (b)Aerial view Dust storms engulf Phoenix,Arizona,in 2013 (ground view)and 2016 (aerial view). Dust storms,such as one from Arizona in 2013,are caused by downbursts associated with thunderstorms.Such storms are termed

Cone-shaped deposits of sediment often found at mouth of canyons in arid and semiarid climates are called

Describe the eolian processes of deflation and abrasion.

The general term for the land degradation in arid and semiarid regions characterized by expansions of deserts is

The sediment-accumulation hypothesis of desert pavement formation states

_____are isolated remnants of resistant rock and products of long-term weathering and erosion.

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

A ____is a dry bed of an ephemeral lake a dryland region.

The Aral Sea,once one of the four largest lakes in the world,has steadily decreased since the 1960s on account of

Desert pavement refers to

Essentials of Geography

Solar Energy to Earth and the Seasons

Earth’s Atmosphere

Atmospheric Energy and Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Earth’s Climatic Regions

Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems

Oceans and Coastal Systems

Glacial Landscapes and the Cryosphere

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters