Question 1

Besides the fact that they were formed by wind, what else can dunes preserved in the rocks tell us?

Accepted Answer

the direction of prevailing winds when they were deposited

Question 2

Deserts are expanding through a process called desertification, destroying once productive rangeland and cropland.

Accepted Answer

A) True 
 B)False

Question 3

An isolated mountain that rises from the flat plain of a desert is known as a(n)___________ .

Accepted Answer

The answer of An isolated mountain that rises from the...

Question 4

What is a playa lake?

Accepted Answer

a usually shallow, o...

Question 5

Agriculture and overgrazing on lands adjacent to existing deserts can cause desertification.

Accepted Answer

A) True 
 B)False

Question 6

Which of the dune types is the most mobile?

Accepted Answer

The answer of Which of the dune types is the...

Question 7

Even if not presently found in desert climates, all dunes originated in desert conditions.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following statements is accurate concerning deserts?

Accepted Answer

A)   the processes and landforms in deserts are unique to deserts
B)   the geologic processes operating in deserts also operate in other environments
C)   the extent of deserts is constant over time and will not likely change in the future
D)   deserts are an ephemeral feature, present only until vegetation can stabilize sediment

Question 9

What is meant by the term "desertification"?

Accepted Answer

the transformation o...

Question 10

___________dunes form when vegetation cover is broken by deflation and the dune tips point upwind.

Accepted Answer

The answer of ___________dunes form when vegetation cover is broken...

Question 11

Wind transports sediment in the same way as water - as dissolved load, suspended load, and bed load.

Accepted Answer

A) True 
 B)False

Question 12

How does the process of surface creep occur?

Accepted Answer

Saltating sand grain...

Question 13

Sand dunes result when

Accepted Answer

A)   sand supply is plentiful
B)   wind direction is consistently in one direction
C)   vegetation is sparse
D)   A and C
E)   all of the above D

Question 14

In low relief terrain with a partial cover of vegetation, limited sand supply, and a constant wind direction, which of the following dune types will develop?

Accepted Answer

A)   barchan dunes
B)   longitudinal dunes
C)   transverse dunes
D)   parabolic dunes
E)   star dunes

Question 15

In low relief terrain with limited vegetation, abundant sand supply, and a constant wind direction, which of the following dune types will develop?

Accepted Answer

A)   barchan dunes
B)   longitudinal dunes
C)   transverse dunes
D)   parabolic dunes
E)   star dunes

Question 16

What are yardangs?

Accepted Answer

elongated, streamlin...

Question 17

Surface creep in a desert is a type of mass wasting.

Accepted Answer

A) True 
 B)False

Question 18

What is internal drainage?

Accepted Answer

the type of drainage character...

Question 19

What did the famous twenty-mule teams haul out of Death Valley?

Accepted Answer

The answer of What did the famous twenty-mule teams haul...

Question 20

During the Pleistocene Epoch pluvial lakes occupied the region of Death Valley.

Accepted Answer

A) True 
 B)False  True

Exam 18: The Work of Winds and Deserts

Besides the fact that they were formed by wind, what else can dunes preserved in the rocks tell us?

Correct Answerverifiedthe direction of prevailing winds when they were deposited

Deserts are expanding through a process called desertification, destroying once productive rangeland and cropland.

Correct AnswerverifiedShow Answer

An isolated mountain that rises from the flat plain of a desert is known as a(n)___________ .

Correct AnswerverifiedShow Answer

What is a playa lake?

Correct Answerverifieda usually shallow, o...View AnswerShow Answer

Agriculture and overgrazing on lands adjacent to existing deserts can cause desertification.

Correct AnswerverifiedShow Answer

Which of the dune types is the most mobile?

Correct AnswerverifiedShow Answer

Even if not presently found in desert climates, all dunes originated in desert conditions.

Correct AnswerverifiedShow Answer

Which of the following statements is accurate concerning deserts?

Correct AnswerverifiedShow Answer

What is meant by the term "desertification"?

Correct Answerverifiedthe transformation o...View AnswerShow Answer

___________dunes form when vegetation cover is broken by deflation and the dune tips point upwind.

Correct AnswerverifiedShow Answer

Wind transports sediment in the same way as water - as dissolved load, suspended load, and bed load.

Correct AnswerverifiedShow Answer

How does the process of surface creep occur?

Correct AnswerverifiedSaltating sand grain...View AnswerShow Answer

Sand dunes result when

Correct AnswerverifiedD

In low relief terrain with a partial cover of vegetation, limited sand supply, and a constant wind direction, which of the following dune types will develop?

Correct AnswerverifiedShow Answer

In low relief terrain with limited vegetation, abundant sand supply, and a constant wind direction, which of the following dune types will develop?

Correct AnswerverifiedShow Answer

What are yardangs?

Correct Answerverifiedelongated, streamlin...View AnswerShow Answer

Surface creep in a desert is a type of mass wasting.

Correct AnswerverifiedShow Answer

What is internal drainage?

Correct Answerverifiedthe type of drainage character...View AnswerShow Answer

What did the famous twenty-mule teams haul out of Death Valley?

Correct AnswerverifiedShow Answer

During the Pleistocene Epoch pluvial lakes occupied the region of Death Valley.

Correct AnswerverifiedTrue

Correct Answer
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the direction of prevailing winds when they were deposited

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Correct Answer
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a usually shallow, o...
View Answer

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Correct Answer
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Correct Answer
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the transformation o...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Saltating sand grain...
View Answer

Correct Answer
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D

Correct Answer
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Correct Answer
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Correct Answer
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elongated, streamlin...
View Answer

Correct Answer
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Correct Answer
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the type of drainage character...
View Answer

Correct Answer
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Correct Answer
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True