Question 1

Name 4 of the reasons that desert regions lack moisture.

Accepted Answer

Dry air descends to the surfac

Question 2

What are two causes of local variation in wind pattern, and which regions most commonly have these variations?

Accepted Answer

Two causes of local variation are high m

Question 3

Which of the following is not a natural process that could be involved in the creation of desert pavement?

Accepted Answer

A)  dissolving and precipitation of sand minerals 
B)  wind blowing away sand, silt, and dust 
C)  rain washing fine dust downward 
D)  shrinking and swelling of silica minerals 
A)  dissolving and precipitation of sand minerals 
B)  wind blowing away sand, silt, and dust 
C)  rain washing fine dust downward 
D)  shrinking and swelling of silica minerals

Question 4

Polar deserts form above ________ degrees north or south latitude.

Accepted Answer

A)  0 
B)  15 
C)  30 
D)  45 
E)  60 
A)  0 
B)  15 
C)  30 
D)  45 
E)  60

Question 5

It is unusual for the wind to move grains larger than ________ in diameter.

Accepted Answer

A)  0.05 mm 
B)  0.5 mm 
C)  5 mm 
D)  0.5 cm 
A)  0.05 mm 
B)  0.5 mm 
C)  5 mm 
D)  0.5 cm

Question 6

Which type of desert involves an air mass moving outward to the ocean?

Accepted Answer

A)  subtropical desert 
B)  rain-shadow desert 
C)  coastal desert 
D)  polar desert 
A)  subtropical desert 
B)  rain-shadow desert 
C)  coastal desert 
D)  polar desert

Question 7

Yardangs form from

Accepted Answer

A)  sedimentary rock, which is strong enough to stay standing but soft enough to abrade. 
B)  metamorphic rock, which is strong enough to withstand extensive abrasion without being completely eroded and swept away. 
C)  igneous intrusions, which are left standing after sedimentary rock around it has been eroded. 
D)  volcanic rock, which is soft and easily abraded. 
A)  sedimentary rock, which is strong enough to stay standing but soft enough to abrade. 
B)  metamorphic rock, which is strong enough to withstand extensive abrasion without being completely eroded and swept away. 
C)  igneous intrusions, which are left standing after sedimentary rock around it has been eroded. 
D)  volcanic rock, which is soft and easily abraded.

Question 8

Deflation is derived from a Latin word meaning

Accepted Answer

A)  to erode. 
B)  to blow away. 
C)  to lose volume. 
D)  to abrade or scrape. 
A)  to erode. 
B)  to blow away. 
C)  to lose volume. 
D)  to abrade or scrape.

Question 9

The majority of Earth's deserts form as ________ deserts.

Accepted Answer

A)  subtropical 
B)  rain-shadow 
C)  coastal 
D)  polar 
A)  subtropical 
B)  rain-shadow 
C)  coastal 
D)  polar

Question 10

Wind most commonly picks up particles by

Accepted Answer

A)  shear force. 
B)  flow force. 
C)  abrasion. 
D)  plucking. 
A)  shear force. 
B)  flow force. 
C)  abrasion. 
D)  plucking.

Question 11

A sand dune is considered "active" when

Accepted Answer

A)  it is being moved by wind. 
B)  it is being colonized by new plants. 
C)  it has been formed by volcanic activity. 
D)  it is being dissolved into the sea. 
A)  it is being moved by wind. 
B)  it is being colonized by new plants. 
C)  it has been formed by volcanic activity. 
D)  it is being dissolved into the sea.

Question 12

Deserts coincide with

Accepted Answer

A)  subtropical high-pressure belts. 
B)  subtropical low-pressure belts. 
C)  temperate high-pressure zones. 
D)  temperate low-pressure zones. 
A)  subtropical high-pressure belts. 
B)  subtropical low-pressure belts. 
C)  temperate high-pressure zones. 
D)  temperate low-pressure zones.

Question 13

In the summer, dust in the Southeast is red. This is due to

Accepted Answer

A)  iron oxide minerals. 
B)  organic content. 
C)  clay minerals. 
D)  aluminum. 
A)  iron oxide minerals. 
B)  organic content. 
C)  clay minerals. 
D)  aluminum.

Question 14

Which of the following is not a common cause and effect related to dust?

Accepted Answer

A)  Swirling dust reduces visibility and causes highway accidents. 
B)  Vegetated land is changed to barren desert by windstorms. 
C)  Topsoil loses its nutrients and agriculture becomes less productive in a given area. 
D)  Cities experience hazy skies, even thousands of kilometers from dust storms. 
A)  Swirling dust reduces visibility and causes highway accidents. 
B)  Vegetated land is changed to barren desert by windstorms. 
C)  Topsoil loses its nutrients and agriculture becomes less productive in a given area. 
D)  Cities experience hazy skies, even thousands of kilometers from dust storms.

Question 15

Which parcel of air has the lowest pressure?

Accepted Answer

A)  warm moist air 
B)  warm dry air 
C)  cold moist air 
D)  cold dry air 
A)  warm moist air 
B)  warm dry air 
C)  cold moist air 
D)  cold dry air

Question 16

Most deserts are located near

Accepted Answer

A)  15° latitude. 
B)  the equator. 
C)  30° latitude. 
D)  45° latitude. 
A)  15° latitude. 
B)  the equator. 
C)  30° latitude. 
D)  45° latitude.

Question 17

Judge the following sentence according to the criteria given below: The temperature and moisture effects on air density commonly work together, because warm air can hold more moisture than cold air.

Accepted Answer

A)  The assertion and the reason are both correct, and the reason is valid. 
B)  The assertion and the reason are both correct, but the reason is invalid. 
C)  The assertion is correct but the reason is incorrect. 
D)  The assertion is incorrect but the reason is correct. 
E)  Both the assertion and the reason are incorrect. 
A)  The assertion and the reason are both correct, and the reason is valid. 
B)  The assertion and the reason are both correct, but the reason is invalid. 
C)  The assertion is correct but the reason is incorrect. 
D)  The assertion is incorrect but the reason is correct. 
E)  Both the assertion and the reason are incorrect.

Question 18

What does the Coriolis effect do?

Accepted Answer

The Coriolis effect shifts mov

Question 19

The largest typical size for grains of sand that can be commonly moved by wind is

Accepted Answer

A)  5 micrometers. 
B)  0.5 millimeter. 
C)  1.0 millimeter. 
D)  1.0 centimeter. 
A)  5 micrometers. 
B)  0.5 millimeter. 
C)  1.0 millimeter. 
D)  1.0 centimeter.

Question 20

Motion in the atmosphere is called

Accepted Answer

A)  climate. 
B)  wind. 
C)  convection. 
D)  wave. 
A)  climate. 
B)  wind. 
C)  convection. 
D)  wave.

Exam 20: Wind: a Global Geologic Process

Name 4 of the reasons that desert regions lack moisture.

What are two causes of local variation in wind pattern, and which regions most commonly have these variations?

Which of the following is not a natural process that could be involved in the creation of desert pavement?

Polar deserts form above ________ degrees north or south latitude.

It is unusual for the wind to move grains larger than ________ in diameter.

Which type of desert involves an air mass moving outward to the ocean?

Yardangs form from

Deflation is derived from a Latin word meaning

The majority of Earth's deserts form as ________ deserts.

Wind most commonly picks up particles by

A sand dune is considered "active" when

Deserts coincide with

In the summer, dust in the Southeast is red. This is due to

Which of the following is not a common cause and effect related to dust?

Which parcel of air has the lowest pressure?

Most deserts are located near

Judge the following sentence according to the criteria given below: The temperature and moisture effects on air density commonly work together, because warm air can hold more moisture than cold air.

What does the Coriolis effect do?

The largest typical size for grains of sand that can be commonly moved by wind is

Motion in the atmosphere is called

Why Study Earth

Minerals: Building Blocks of the Planet

Rocks and Rock-Forming Processes

Formation of Magma and Igneous Rocks

Formation of Sediment and Sedimentary Rocks

Formation of Metamorphic Rocks

Earth Materials As Time Keepers

Earth Materials As Time Keepers

Making Earth

Motion Inside Earth

Deformation of Rocks

Global Tectonics: Plates and Plumes

Tectonics and Surface Relief

Soil Formation and Landscape Stability

Mass Movements: Landscapes in Motion

Streams: Flowing Water Shapes the Landscape

Water Flowing Underground

Glaciers: Cold-Climate Sculptors of Continents

Shorelines: Changing Landscapes Where Land Meets Sea

Global Warming: Real Time Change in the Earth System

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