Question 1

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)  dehydration 
A)  evaporation 
B)  expansion 
C)  desertification 
D)  desiccation 
E)  dehydration C

Question 2

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 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. 
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. C

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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

Accepted Answer

For loess to accumul

Question 6

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 7

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. 
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.

Question 8

A playa forms by ____________________ of a playa lake.

Accepted Answer

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

Question 9

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

Accepted Answer

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

Question 10

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

Accepted Answer

Deserts are arid lands that receive less

Question 11

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

Accepted Answer

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

Question 12

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 13

Briefly explain how mesas and buttes form.

Accepted Answer

A nearly horizontal resistant layer of r

Question 14

What are deflation hollows?

Accepted Answer

Deflation hollows ar

Question 15

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 above 
A)  longitudinal. 
B)  transverse. 
C)  barchan. 
D)  parabolic. 
E)  none of the above

Question 16

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

Accepted Answer

Both are deposited by running

Question 17

What factors affect the type of dune that forms?

Accepted Answer

Factors include vegetation cov

Question 18

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. 
A)  alluvium. 
B)  bajada. 
C)  playa. 
D)  plain. 
E)  pediment.

Question 19

All true deserts have widespread sand dunes.

Accepted Answer

A) True 
 B)False

Question 20

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

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

What is desert pavement, and how does it form?

The Coriolis effect is caused by:

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

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

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

Loess is important because it:

A playa forms by ____________________ of a playa lake.

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

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

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

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

Briefly explain how mesas and buttes form.

What are deflation hollows?

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

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

What factors affect the type of dune that forms?

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

All true deserts have widespread sand dunes.

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

Understanding Earth: a Dynamic and Evolving Planet

Plate Tectonics: a Unifying Theory

Minerals: the Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Soil, and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Earthquakes and Earths Interior

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

Shorelines and Shoreline Processes

Geologic Time: Concepts and Principles

Earth History

Life History

Filters

Exam 14: The Work of Wind and Deserts

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

What is desert pavement, and how does it form?

The Coriolis effect is caused by:

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

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

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

Loess is important because it:

A playa forms by ____________________ of a playa lake.

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

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

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

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

Briefly explain how mesas and buttes form.

What are deflation hollows?

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

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

What factors affect the type of dune that forms?

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

All true deserts have widespread sand dunes.

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

Understanding Earth: a Dynamic and Evolving Planet

Plate Tectonics: a Unifying Theory

Minerals: the Building Blocks of Rocks

Igneous Rocks and Intrusive Igneous Activity

Volcanoes and Volcanism

Weathering, Soil, and Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Earthquakes and Earths Interior

Deformation, Mountain Building, and the Continents

Mass Wasting

Running Water

Groundwater

Glaciers and Glaciation

Shorelines and Shoreline Processes

Geologic Time: Concepts and Principles

Earth History

Life History

Filters