Question 1

Approximately, what percentage of the Earth's freshwater is frozen?

Accepted Answer

A)   10%
B)   25%
C)   50%
D)   75%E) All of the above
F) B) and D)

Question 2

A deposition of till that forms behind a terminal moraine as the glacier retreats and is generally spread widely across the ground surface is called a(n)

Accepted Answer

A)   outwash plain.
B)   till plain.
C)   drumlin swarm.
D)   lateral moraine.E) None of the above
F) A) and D)

Question 3

All of the following are related to glacial erosion except

Accepted Answer

A)   ablation.
B)   abrasion.
C)   plucking.
D)   erratics.E) B) and D)
F) None of the above

Question 4

All snowflakes have six sides and show a remarkable degree of similarity to one another.

Accepted Answer

A) True 
 B)False

Question 5

Eroded debris dropped at the glacier's farthest extent is called ________ moraine.

Accepted Answer

A)   ground
B)   terminal
C)   medial
D)   lateralE) None of the above
F) A) and B)

Question 6

The process of calving produces

Accepted Answer

A)   moraines.
B)   nunataks.
C)   tidewater glacier.
D)   icebergs.E) None of the above
F) All of the above

Question 7

In which year did surface melt on the Greenland ice sheet reach its greatest extent?

Accepted Answer

A)   2002
B)   2006
C)   2012
D)   2013E) C) and D)
F) None of the above

Question 8

During the Pleistocene pluvial lakes formed in the ________ United States as a result of ________.

Accepted Answer

A)   southwestern; melting glaciers
B)   southwestern; extended periods of wet conditions
C)   northeastern; ice deposits in till plains
D)   northeastern; melting glaciersE) B) and C)
F) All of the above

Question 9

Glacial surges may be associated with

Accepted Answer

A)   water pressure under the glacier.
B)   soft bed below the glacier.
C)   lubrication from meltwater.
D)   water pressure, soft bed, or lubrication.E) C) and D)
F) A) and B)

Question 10

Over 25% of the measured sea level rise has been attributed to alpine glacier wastage.

Accepted Answer

A) True 
 B)False

Question 11

The upper portion of a glacier flows ________ the lower portion of the glacier.

Accepted Answer

A)   faster
B)   slower
C)   at the same speed.D) A) and B)
E) None of the above

Question 12

Sediments deposited by glacial ice are ________; material deposited by glacial meltwater are ________.

Accepted Answer

A)   sorted; sorted
B)   unsorted; unsorted
C)   unsorted; sorted
D)   sorted; unsortedE) None of the above
F) A) and B)

Question 13

Glacial ice can form during the duration of a single winter season in most glacial areas.

Accepted Answer

A) True 
 B)False

Question 14

patterned ground results from repeated freeze/thaw cycles and self-organization whereby stones are attracted towards stone domains and soil towards soil domains.

Accepted Answer

A) True 
 B)False

Question 15

A small hill, knob, or mound of glaciofluvial sorted sand and gravel that forms on the surface of a glacier and is later left on the left surface after the glacier retreats is a(n)

Accepted Answer

A)   drumlin.
B)   kame.
C)   esker.
D)   kettle.E) B) and C)
F) A) and D)

Question 16

Sorted sediment deposited by glaciofluvial action are called

Accepted Answer

A)   glacial erratics.
B)   stratified drift.
C)   till.
D)   moraines.E) A) and B)
F) All of the above

Question 17

Which of the following is incorrect relative to the PLeistocene Epoch?

Accepted Answer

A)   It began 1.65 million years ago.
B)   In some areas the ice sheets were more than 2 km (1.2 mi)  thick.
C)   The ice sheets disappeared approximately 7,000 years ago.
D)   It represents a single, continuous cold spell.E) A) and B)
F) None of the above

Question 18

The bulk of ice on Earth is in

Accepted Answer

A)   North America, specifically Alaska.
B)   European and Asian mountain ranges.
C)   Greenland and Antarctica.
D)   floating ice shelves and packs.E) A) and B)
F) B) and C)

Question 19

The Matterhorn in the Swiss Alps is an example of a nunatak.

Accepted Answer

A) True 
 B)False

Question 20

Most periglacial environments at high latitudes are seasonally snow-free.

Accepted Answer

A) True 
 B)False

Exam 17: Glacial and Periglacial Processes and Landforms

The bulk of ice on Earth is in

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The process of calving produces

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Sorted sediment deposited by glaciofluvial action are called

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patterned ground results from repeated freeze/thaw cycles and self-organization whereby stones are attracted towards stone domains and soil towards soil domains.

Correct AnswerverifiedShow Answer

Sediments deposited by glacial ice are ________; material deposited by glacial meltwater are ________.

Correct AnswerverifiedShow Answer

All snowflakes have six sides and show a remarkable degree of similarity to one another.

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A deposition of till that forms behind a terminal moraine as the glacier retreats and is generally spread widely across the ground surface is called a(n)

Correct AnswerverifiedShow Answer

Most periglacial environments at high latitudes are seasonally snow-free.

Correct AnswerverifiedShow Answer

All of the following are related to glacial erosion except

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Which of the following is incorrect relative to the PLeistocene Epoch?

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In which year did surface melt on the Greenland ice sheet reach its greatest extent?

Correct AnswerverifiedShow Answer

During the Pleistocene pluvial lakes formed in the ________ United States as a result of ________.

Correct AnswerverifiedShow Answer

The upper portion of a glacier flows ________ the lower portion of the glacier.

Correct AnswerverifiedShow Answer

Over 25% of the measured sea level rise has been attributed to alpine glacier wastage.

Correct AnswerverifiedShow Answer

Approximately, what percentage of the Earth's freshwater is frozen?

Correct AnswerverifiedShow Answer

Glacial surges may be associated with

Correct AnswerverifiedShow Answer

The Matterhorn in the Swiss Alps is an example of a nunatak.

Correct AnswerverifiedShow Answer

A small hill, knob, or mound of glaciofluvial sorted sand and gravel that forms on the surface of a glacier and is later left on the left surface after the glacier retreats is a(n)

Correct AnswerverifiedShow Answer

Eroded debris dropped at the glacier's farthest extent is called ________ moraine.

Correct AnswerverifiedShow Answer

Glacial ice can form during the duration of a single winter season in most glacial areas.

Correct AnswerverifiedShow Answer

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Sediments deposited by glacial ice are ; material deposited by glacial meltwater are .

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During the Pleistocene pluvial lakes formed in the United States as a result of .

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