Question 1

Which one of the following concerning desert lands is false?

Accepted Answer

A)  Wind erosion and deposition are important processes. 
B)  Running water has little effect on shaping the landscape. 
C)  Less than 30 percent is covered with dunes and drifting sand. 
D)  Most desert areas are characterized by descending wind patterns. 
A)  Wind erosion and deposition are important processes. 
B)  Running water has little effect on shaping the landscape. 
C)  Less than 30 percent is covered with dunes and drifting sand. 
D)  Most desert areas are characterized by descending wind patterns.

Question 2

Stream channels in dry lands that only carry water in response to infrequent rainfall or snowmelt events are called_________ .

Accepted Answer

A)  rills 
B)  washboards 
C)  ephemeral 
D)  playas 
A)  rills 
B)  washboards 
C)  ephemeral 
D)  playas

Question 3

Deposition of glacial silt from blowing winds near the ice front was responsible for__________ .

Accepted Answer

A)  blowout pavement 
B)  loess deposits 
C)  deflation ventifacts 
D)  star steppes 
A)  blowout pavement 
B)  loess deposits 
C)  deflation ventifacts 
D)  star steppes

Question 4

Which of the following statements about wind transport is true?

Accepted Answer

A)  Wind can transport boulders by saltation. 
B)  Wind cannot carry clay particles because they are too small. 
C)  Saltation knocks down cacti up to 5 metres high. 
D)  Dust from the Sahara Desert can be carried across the Atlantic Ocean. 
A)  Wind can transport boulders by saltation. 
B)  Wind cannot carry clay particles because they are too small. 
C)  Saltation knocks down cacti up to 5 metres high. 
D)  Dust from the Sahara Desert can be carried across the Atlantic Ocean.

Question 5

All of the following statements concerning dry lands are true except for?

Accepted Answer

A)  Precipitation totals are low; dew points are lower in the summer than winter. 
B)  Wind is the dominant agent of erosion and sediment transport. 
C)  Evaporation potential exceeds actual precipitation. 
D)  Storms are infrequent and rainfall amounts are highly variable. 
A)  Precipitation totals are low; dew points are lower in the summer than winter. 
B)  Wind is the dominant agent of erosion and sediment transport. 
C)  Evaporation potential exceeds actual precipitation. 
D)  Storms are infrequent and rainfall amounts are highly variable.

Question 6

Which Canadian dryland area receives the least precipitation (<50 mm/a) ?

Accepted Answer

A)  central Yukon 
B)  Okanagan Valley, B.C. 
C)  SE Alberta and SW Saskatchewan 
D)  eastern Arctic especially Ellesmere Island, Nunavut 
A)  central Yukon 
B)  Okanagan Valley, B.C. 
C)  SE Alberta and SW Saskatchewan 
D)  eastern Arctic especially Ellesmere Island, Nunavut

Question 7

Multiple, connected, crescent- shaped coastal _______dunes have tips pointing upwind, towards the beach.

Accepted Answer

A)  barchan 
B)  transverse 
C)  longitudinal 
D)  parabolic 
A)  barchan 
B)  transverse 
C)  longitudinal 
D)  parabolic

Question 8

In a dry, fault- originated, basin and range area like the Okanagan Valley of BC and Washington, which environmental conditions are associated with steep mountain slopes and ephemeral streams?

Accepted Answer

A)  Faulting ceased millions of years ago, resulting in moderate rainfall but very hot climate. 
B)  Faulting is probably still active, resulting in a steppe area with a rainy season. 
C)  Faulting is probably still active in the mountain rain shadow, producing a semi- arid climate. 
D)  Faulting ceased millions of years ago, resulting in an arid desert. 
A)  Faulting ceased millions of years ago, resulting in moderate rainfall but very hot climate. 
B)  Faulting is probably still active, resulting in a steppe area with a rainy season. 
C)  Faulting is probably still active in the mountain rain shadow, producing a semi- arid climate. 
D)  Faulting ceased millions of years ago, resulting in an arid desert.

Question 9

Which one of the following is determined by the angle of repose for dry sand?

Accepted Answer

A)  a vertical cut bank in loess 
B)  inclination angle of a dune slip face 
C)  windward slope of a transverse dune 
D)  longitudinal dune gradient angle 
A)  a vertical cut bank in loess 
B)  inclination angle of a dune slip face 
C)  windward slope of a transverse dune 
D)  longitudinal dune gradient angle

Question 10

What type of transport load does a stream carry that wind does not?

Accepted Answer

The answer of What type of transport load does a...

Question 11

How are sand grains transported by the wind?

Accepted Answer

A)  by saltation as bed load in the first metre above the land surface 
B)  by deflation of abraded desert pavement 
C)  by being picked up in swirling dust devils and carried to distant blowouts 
D)  high in the moving air column as suspended load 
A)  by saltation as bed load in the first metre above the land surface 
B)  by deflation of abraded desert pavement 
C)  by being picked up in swirling dust devils and carried to distant blowouts 
D)  high in the moving air column as suspended load

Question 12

Rainshadow deserts are common in the lee of major mountain ranges such as in .

Accepted Answer

A)  the dry valleys of the Okanagan and farther south in eastern California and Nevada 
B)  north central Africa 
C)  Europe north of the Alps 
D)  vast, dry, steppe lands like the Great Plains and central America 
A)  the dry valleys of the Okanagan and farther south in eastern California and Nevada 
B)  north central Africa 
C)  Europe north of the Alps 
D)  vast, dry, steppe lands like the Great Plains and central America

Question 13

__________refers to the "bouncing" mode of sand transport in a windstorm or stream.

Accepted Answer

A)  Ventifaction 
B)  Siltation 
C)  Deflation 
D)  Saltation 
A)  Ventifaction 
B)  Siltation 
C)  Deflation 
D)  Saltation

Question 14

Assume that the central slip face of a barchan dune slopes downhill toward the east. What is the direction of the prevailing wind?

Accepted Answer

A)  north to south 
B)  south to north 
C)  east to west 
D)  west to east 
A)  north to south 
B)  south to north 
C)  east to west 
D)  west to east

Question 15

Most dry lands lie between___________ degrees north and south of the equator.

Accepted Answer

A)  40 and 50 
B)  5 and 10 
C)  20 and 30 
D)  0 and 5 
A)  40 and 50 
B)  5 and 10 
C)  20 and 30 
D)  0 and 5

Question 16

Assume that a longitudinal dune field has its dune crests oriented north- south, with a few dunes having hooked ends closed to the north, or branching, nearly parallel ridges opening to the south. What is the direction of the prevailing wind?

Accepted Answer

A)  south to north 
B)  north to south 
C)  east to west 
D)  west to east 
A)  south to north 
B)  north to south 
C)  east to west 
D)  west to east

Question 17

A________ is closed depression in an arid region caused by _______.

Accepted Answer

A)  sinkhole, wind abrasion 
B)  U- shaped valley, drying chinook winds 
C)  kettle hole, boiling desert springs 
D)  blowout, deflation 
A)  sinkhole, wind abrasion 
B)  U- shaped valley, drying chinook winds 
C)  kettle hole, boiling desert springs 
D)  blowout, deflation

Question 18

The tips of _________ dunes point upwind and commonly result from persistent, onshore winds in certain coastal areas.

Accepted Answer

A)  transverse 
B)  longitudinal 
C)  barchan 
D)  parabolic 
A)  transverse 
B)  longitudinal 
C)  barchan 
D)  parabolic

Question 19

Which of the following best describes the climatic factors that cause low latitude deserts like the Sahara in Africa?

Accepted Answer

A)  Warm, humid air aloft is descending; surface winds blow away from the equator. 
B)  Warm, humid air is rising; surface winds are calm. 
C)  Cool, dry air at the surface is rising causing winds to blow away from the equator. 
D)  Cool, dry air aloft is descending; surface winds are blowing toward the equator. 
A)  Warm, humid air aloft is descending; surface winds blow away from the equator. 
B)  Warm, humid air is rising; surface winds are calm. 
C)  Cool, dry air at the surface is rising causing winds to blow away from the equator. 
D)  Cool, dry air aloft is descending; surface winds are blowing toward the equator.

Question 20

__________dunes are long, high, sand dunes parallel with the prevailing wind direction.

Accepted Answer

A)  Longitudinal 
B)  Latitudinal 
C)  Subliminal 
D)  Transvestual 
A)  Longitudinal 
B)  Latitudinal 
C)  Subliminal 
D)  Transvestual

Which one of the following concerning desert lands is false?

Stream channels in dry lands that only carry water in response to infrequent rainfall or snowmelt events are called_________ .

Deposition of glacial silt from blowing winds near the ice front was responsible for__________ .

Which of the following statements about wind transport is true?

All of the following statements concerning dry lands are true except for?

Which Canadian dryland area receives the least precipitation (<50 mm/a) ?

Multiple, connected, crescent- shaped coastal _______dunes have tips pointing upwind, towards the beach.

In a dry, fault- originated, basin and range area like the Okanagan Valley of BC and Washington, which environmental conditions are associated with steep mountain slopes and ephemeral streams?

Which one of the following is determined by the angle of repose for dry sand?

What type of transport load does a stream carry that wind does not?

How are sand grains transported by the wind?

Rainshadow deserts are common in the lee of major mountain ranges such as in .

__________refers to the "bouncing" mode of sand transport in a windstorm or stream.

Assume that the central slip face of a barchan dune slopes downhill toward the east. What is the direction of the prevailing wind?

Most dry lands lie between___________ degrees north and south of the equator.

Assume that a longitudinal dune field has its dune crests oriented north- south, with a few dunes having hooked ends closed to the north, or branching, nearly parallel ridges opening to the south. What is the direction of the prevailing wind?

A__ is closed depression in an arid region caused by _.

The tips of _________ dunes point upwind and commonly result from persistent, onshore winds in certain coastal areas.

Which of the following best describes the climatic factors that cause low latitude deserts like the Sahara in Africa?

__________dunes are long, high, sand dunes parallel with the prevailing wind direction.

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters

Exam 10: Earthquakes and Earths Interior

Which one of the following concerning desert lands is false?

Stream channels in dry lands that only carry water in response to infrequent rainfall or snowmelt events are called_________ .

Deposition of glacial silt from blowing winds near the ice front was responsible for__________ .

Which of the following statements about wind transport is true?

All of the following statements concerning dry lands are true except for?

Which Canadian dryland area receives the least precipitation (<50 mm/a) ?

Multiple, connected, crescent- shaped coastal _______dunes have tips pointing upwind, towards the beach.

In a dry, fault- originated, basin and range area like the Okanagan Valley of BC and Washington, which environmental conditions are associated with steep mountain slopes and ephemeral streams?

Which one of the following is determined by the angle of repose for dry sand?

What type of transport load does a stream carry that wind does not?

How are sand grains transported by the wind?

Rainshadow deserts are common in the lee of major mountain ranges such as in .

__________refers to the "bouncing" mode of sand transport in a windstorm or stream.

Assume that the central slip face of a barchan dune slopes downhill toward the east. What is the direction of the prevailing wind?

Most dry lands lie between___________ degrees north and south of the equator.

Assume that a longitudinal dune field has its dune crests oriented north- south, with a few dunes having hooked ends closed to the north, or branching, nearly parallel ridges opening to the south. What is the direction of the prevailing wind?

A________ is closed depression in an arid region caused by _______.

The tips of _________ dunes point upwind and commonly result from persistent, onshore winds in certain coastal areas.

Which of the following best describes the climatic factors that cause low latitude deserts like the Sahara in Africa?

__________dunes are long, high, sand dunes parallel with the prevailing wind direction.

An Introduction to Geology and Plate Tectonics

Minerals: the Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters

A__ is closed depression in an arid region caused by _.