Question 1

____________________ involves the impact of saltating sand grains on an object.

Accepted Answer

The answer of ____________________ involves the impact of saltating sand...

Question 2

Loess is important because it:

Accepted Answer

A)   is an important source of building material.
B)   is rich in important ore deposits.
C)   sometimes contains petroleum.
D)   makes fertile soil.
E)   is an important source of groundwater.F) B) and C)
G) B) and E)

Question 3

The Coriolis effect is caused by:

Accepted Answer

A)   wind shear between water and the atmosphere.
B)   the axial tilt of the Earth.
C)   the rotation of the Earth.
D)   differences in air pressure in different regions.
E)   Milankovitch cycles.F) A) and B)
G) C) and E) C

Question 4

As in more humid regions, streams in deserts draw upon groundwater to replace water lost to evaporation and absorption into the ground.

Accepted Answer

A) True 
 B)False

Question 5

What are deserts, and where are they located on Earth?

Accepted Answer

Deserts are arid lands that receive less...

Question 6

The process of encroachment/invasion of deserts into regions that were once productive is termed as?

Accepted Answer

A)   evaporation
B)   expansion
C)   desertification
D)   desiccation
E)   dehydrationF) B) and C)
G) None of the above C

Question 7

All true deserts have widespread sand dunes.

Accepted Answer

A) True 
 B)False

Question 8

What factors affect the type of dune that forms?

Accepted Answer

Factors include vegetation cov...

Question 9

Buttes are isolated steep-sided, pinnacle-like hills formed when resistant cap rock is breached and less resistant underlying rocks are eroded.

Accepted Answer

A) True 
 B)False

Question 10

An erosional bedrock surface of low relief that slopes gently away from a mountain base is a(n) :

Accepted Answer

A)   alluvium.
B)   bajada.
C)   playa.
D)   plain.
E)   pediment.F) None of the above
G) A) and B)

Question 11

Dunes that form when vegetation cover is broken by deflation and the dune tips point upwind are:

Accepted Answer

A)   longitudinal.
B)   transverse.
C)   barchan.
D)   parabolic.
E)   none of the aboveF) B) and E)
G) C) and D)

Question 12

What is desert pavement, and how does it form?

Accepted Answer

Desert pavement is a mosaic of close-fitting rocks found in the desert. Winds remove sand-sized particles by deflation, leaving a surface of pebbles, cobbles, and boulders. Once desert pavement forms, it protects the underlying material from further deflation.

Question 13

Briefly explain how mesas and buttes form.

Accepted Answer

A nearly horizontal resistant layer of r...

Question 14

Briefly explain why loess can originate in, but is not deposited in, deserts.

Accepted Answer

For loess to accumul...

Question 15

Explain the ways in which alluvial fans and deltas are similar.

Accepted Answer

Both are deposited by running ...

Question 16

All dunes have crests oriented perpendicular to the direction of wind movement.

Accepted Answer

A) True 
 B)False

Question 17

The close-fitting mosaic of pebbles, cobbles, and boulders covering the floor of many deserts and semiarid regions is called:

Accepted Answer

A)   ventifact.
B)   desert pavement.
C)   longitudinal dune.
D)   yardang.
E)   barchan dune.F) A) and B)
G) A) and E)

Question 18

A playa forms by ____________________ of a playa lake.

Accepted Answer

The answer of A playa forms by ____________________ of a...

Question 19

The transformation of formerly productive lands into deserts is called ____________________.

Accepted Answer

The answer of The transformation of formerly productive lands into...

Question 20

What are deflation hollows?

Accepted Answer

Deflation hollows ar...

Exam 14: The Work of Wind and Deserts

____________________ involves the impact of saltating sand grains on an object.

Correct AnswerverifiedShow Answer

Loess is important because it:

Correct AnswerverifiedShow Answer

The Coriolis effect is caused by:

Correct AnswerverifiedC

As in more humid regions, streams in deserts draw upon groundwater to replace water lost to evaporation and absorption into the ground.

Correct AnswerverifiedShow Answer

What are deserts, and where are they located on Earth?

Correct AnswerverifiedDeserts are arid lands that receive less...View AnswerShow Answer

The process of encroachment/invasion of deserts into regions that were once productive is termed as?

Correct AnswerverifiedC

All true deserts have widespread sand dunes.

Correct AnswerverifiedShow Answer

What factors affect the type of dune that forms?

Correct AnswerverifiedFactors include vegetation cov...View AnswerShow Answer

Buttes are isolated steep-sided, pinnacle-like hills formed when resistant cap rock is breached and less resistant underlying rocks are eroded.

Correct AnswerverifiedShow Answer

An erosional bedrock surface of low relief that slopes gently away from a mountain base is a(n) :

Correct AnswerverifiedShow Answer

Dunes that form when vegetation cover is broken by deflation and the dune tips point upwind are:

Correct AnswerverifiedShow Answer

What is desert pavement, and how does it form?

Correct AnswerverifiedDesert pavement is a mosaic of close-fitting rocks found in the desert. Winds remove sand-sized particles by deflation, leaving a surface of pebbles, cobbles, and boulders. Once desert pavement forms, it protects the underlying material from further deflation.

Briefly explain how mesas and buttes form.

Correct AnswerverifiedA nearly horizontal resistant layer of r...View AnswerShow Answer

Briefly explain why loess can originate in, but is not deposited in, deserts.

Correct AnswerverifiedFor loess to accumul...View AnswerShow Answer

Explain the ways in which alluvial fans and deltas are similar.

Correct AnswerverifiedBoth are deposited by running ...View AnswerShow Answer

All dunes have crests oriented perpendicular to the direction of wind movement.

Correct AnswerverifiedShow Answer

The close-fitting mosaic of pebbles, cobbles, and boulders covering the floor of many deserts and semiarid regions is called:

Correct AnswerverifiedShow Answer

A playa forms by ____________________ of a playa lake.

Correct AnswerverifiedShow Answer

The transformation of formerly productive lands into deserts is called ____________________.

Correct AnswerverifiedShow Answer

What are deflation hollows?

Correct AnswerverifiedDeflation hollows ar...View AnswerShow Answer

Correct Answer
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C

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Deserts are arid lands that receive less...
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C

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Factors include vegetation cov...
View Answer

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Desert pavement is a mosaic of close-fitting rocks found in the desert. Winds remove sand-sized particles by deflation, leaving a surface of pebbles, cobbles, and boulders. Once desert pavement forms, it protects the underlying material from further deflation.

Correct Answer
verified
A nearly horizontal resistant layer of r...
View Answer

Correct Answer
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For loess to accumul...
View Answer

Correct Answer
verified
Both are deposited by running ...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Deflation hollows ar...
View Answer