Question 1

An ice cap is the most extensive form of continental glacier.

Accepted Answer

A) True 
 B)False  False

Question 2

Which of the following is true?

Accepted Answer

A) a typical ice age is continuously cool. 
B) during most of Earth's history,the planet has been much cooler than it has been during the last two million years. 
C) modern humans and their immediate ancestors (Homo erectus and Homo sapiens)lived during a climate anomaly. 
D) the geologic record indicates that past climate changes have been abrupt. 
E) our climate knowledge is based primarily on fossil material preserved in amber. 
A) a typical ice age is continuously cool. 
B) during most of Earth's history,the planet has been much cooler than it has been during the last two million years. 
C) modern humans and their immediate ancestors (Homo erectus and Homo sapiens)lived during a climate anomaly. 
D) the geologic record indicates that past climate changes have been abrupt. 
E) our climate knowledge is based primarily on fossil material preserved in amber. C

Question 3

The Pleistocene ice age began 18,000 years ago.

Accepted Answer

A) True 
 B)False  False

Question 4

A general term for a mass of perennial ice,resting on land or floating shelf-like in the sea adjacent to land is

Accepted Answer

A) the snowline. 
B) an iceberg. 
C) a glacier. 
D) moraine. 
E) nunatk. 
A) the snowline. 
B) an iceberg. 
C) a glacier. 
D) moraine. 
E) nunatk.

Question 5

A tarn is a lake in a

Accepted Answer

A) till plain. 
B) horn. 
C) cirque. 
D) glacial valley. 
E) glacial trough. 
A) till plain. 
B) horn. 
C) cirque. 
D) glacial valley. 
E) glacial trough.

Question 6

The process of calving in the glacial environment produces

Accepted Answer

A) baby steers. 
B) nunataks. 
C) roche moutonn   . 
D) icebergs. 
E) moraines. 
A) baby steers. 
B) nunataks. 
C) roche moutonn   . 
D) icebergs. 
E) moraines.

Question 7

A valley glacier that extends beyond the confines of its valley and coalesces with other valley glaciers along the base of a mountain range is termed

Accepted Answer

A) an ice field. 
B) a piedmont glacier. 
C) a cirque glacier. 
D) a valley glacier. 
E) an ice sheet 
A) an ice field. 
B) a piedmont glacier. 
C) a cirque glacier. 
D) a valley glacier. 
E) an ice sheet

Question 8

Erosion by alpine glaciers ________ the ruggedness of the landscape.

Accepted Answer

A) increases 
B) decreases 
C) has no net effect on 
A) increases 
B) decreases 
C) has no net effect on

Question 9

Write an essay in which you describe and evaluate the various mechanisms proposed to explain the long-term fluctuations of Earth's climate.

Accepted Answer

The long-term fluctuations of Earth's cl

Question 10

Which of the following is generally true of the basal layer of a glacier?

Accepted Answer

A) it can extend about one meter above the ground surface. 
B) it tends to flow more quickly than the overlying parts of the glacier. 
C) it contains more debris than other parts of the glacier. 
D) crevasses form in this region of the glacier. 
E) it behaves as a brittle solid. 
A) it can extend about one meter above the ground surface. 
B) it tends to flow more quickly than the overlying parts of the glacier. 
C) it contains more debris than other parts of the glacier. 
D) crevasses form in this region of the glacier. 
E) it behaves as a brittle solid.

Question 11

Glacier surges may be associated with

Accepted Answer

A) ice quakes,mass imbalance,and water pressure. 
B) mass imbalance,basal debris load,and rebound pressure from the bed. 
C) water pressure,rebound pressure from the bed,and basal debris load. 
D) basal debris load,ice quakes,and water pressure. 
E) water pressure,basal debris load,and rebound pressure from the bed. 
A) ice quakes,mass imbalance,and water pressure. 
B) mass imbalance,basal debris load,and rebound pressure from the bed. 
C) water pressure,rebound pressure from the bed,and basal debris load. 
D) basal debris load,ice quakes,and water pressure. 
E) water pressure,basal debris load,and rebound pressure from the bed.

Question 12

If a glacier does not have debris embedded in its base,it is not a very effective agent of abrasion.

Accepted Answer

A) True 
 B)False

Question 13

When two valley glaciers join together,they form a ________ at the point at which they merge.

Accepted Answer

A) terminal moraine 
B) till plain 
C) recessional moraine 
D) medial moraine 
E) lateral 
A) terminal moraine 
B) till plain 
C) recessional moraine 
D) medial moraine 
E) lateral

Question 14

Louis Agassiz developed a theory to explain the presence of boulders that differ in composition and origin from the ground on which they rest.He regarded these glacially deposited forms as

Accepted Answer

A) erratics. 
B) horns. 
C) tarns. 
D) nunataks. 
E) eskers 
A) erratics. 
B) horns. 
C) tarns. 
D) nunataks. 
E) eskers

Question 15

The presence of meltwater at the bottom of a glacier can increase its rate of movement.

Accepted Answer

A) True 
 B)False

Question 16

The type of glacier that dominates Greenland and Antarctica is

Accepted Answer

A) valley glacier. 
B) piedmont glacier. 
C) ice sheet. 
D) ice field. 
E) ice cap 
A) valley glacier. 
B) piedmont glacier. 
C) ice sheet. 
D) ice field. 
E) ice cap

Question 17

Which of the following is correctly matched?

Accepted Answer

A) an erosional form - recessional moraine 
B) a depositional form - nunatak 
C) a depositional form - drumlin 
D) a depositional form - roche moutonn   . 
E) an erosional form - esker 
A) an erosional form - recessional moraine 
B) a depositional form - nunatak 
C) a depositional form - drumlin 
D) a depositional form - roche moutonn   . 
E) an erosional form - esker

Question 18

The general term for all glacial deposits is

Accepted Answer

A) till. 
B) outwash. 
C) glacial drift. 
D) alluvium. 
E) colluvium. 
A) till. 
B) outwash. 
C) glacial drift. 
D) alluvium. 
E) colluvium.

Question 19

Which of the following are erosional features formed by an alpine glaciers?

Accepted Answer

A) cirque,drumlin,esker 
B) horn,cirque,col 
C) drumlin,esker,horn 
D) col,esker,moraine 
E) esker,drumlin,horn 
A) cirque,drumlin,esker 
B) horn,cirque,col 
C) drumlin,esker,horn 
D) col,esker,moraine 
E) esker,drumlin,horn

Question 20

Relative to the entire history of our planet,Earth has been in one of its warmest phases for the past 1.65 million years.

Accepted Answer

A) True 
 B)False

Exam 17: Glacial and Periglacial Processes and Landforms

An ice cap is the most extensive form of continental glacier.

Which of the following is true?

The Pleistocene ice age began 18,000 years ago.

A general term for a mass of perennial ice,resting on land or floating shelf-like in the sea adjacent to land is

A tarn is a lake in a

The process of calving in the glacial environment produces

A valley glacier that extends beyond the confines of its valley and coalesces with other valley glaciers along the base of a mountain range is termed

Erosion by alpine glaciers ________ the ruggedness of the landscape.

Write an essay in which you describe and evaluate the various mechanisms proposed to explain the long-term fluctuations of Earth's climate.

Which of the following is generally true of the basal layer of a glacier?

Glacier surges may be associated with

If a glacier does not have debris embedded in its base,it is not a very effective agent of abrasion.

When two valley glaciers join together,they form a ________ at the point at which they merge.

Louis Agassiz developed a theory to explain the presence of boulders that differ in composition and origin from the ground on which they rest.He regarded these glacially deposited forms as

The presence of meltwater at the bottom of a glacier can increase its rate of movement.

The type of glacier that dominates Greenland and Antarctica is

Which of the following is correctly matched?

The general term for all glacial deposits is

Which of the following are erosional features formed by an alpine glaciers?

Relative to the entire history of our planet,Earth has been in one of its warmest phases for the past 1.65 million years.

Essentials of Geography

Solar Energy to Earth and the Seasons

Earth's Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Climate Systems and Climate Change

The Dynamic Planet

Tectonics, Earthquakes, and Volcanism

Weathering, Karst Landscapes, and Mass Movement

River Systems and Landforms

Eolian Processes and Arid Landscapes

The Oceans, Coastal Processes, and Landforms

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Earth and the Human Denominator

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