Question 1

Discuss the process of glacial erosion.

Accepted Answer

A flowing glacier mechanically picks up ...

Question 2

Describe the process of glacial movement.

Accepted Answer

Glacial ice behaves as a plastic;it dist...

Question 3

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)  recessional moraine.

Question 4

Frozen subsurface water in regions of permafrost is called

Accepted Answer

A)  talik.
B)  the active layer.
C)  ground ice.
D)  periglacial water.
E)  discontinuous zone.

Question 5

The rapid change of snowflakes as they are on the ground is known as

Accepted Answer

A)  snow metamorphism.
B)  sublimation.
C)  deposition.
D)  saltation.
E)  traction.

Question 6

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)  till plain.

Question 7

____are small mountain lakes formed in cirques.

Accepted Answer

A)  Cols
B)  Horns
C)  Hanging valleys
D)  Arêtes
E)  Tarns

Question 8

A glacier confined in a bowl-shaped recess is known as a(n)

Accepted Answer

A)  cirque glacier.
B)  valley glacier.
C)  piedmont glacier.
D)  tidewater glacier.
E)  ice shelf.

Question 9

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

Accepted Answer

A)  2002
B)  2006
C)  2012
D)  2013
E)  2016 C

Question 10

A glacier that ends in the sea is known as a(n)

Accepted Answer

A)  ice cap.
B)  cirque glacier.
C)  valley glacier.
D)  tidewater glacier.
E)  piedmont glacier.

Question 11

The process of calving produces

Accepted Answer

A)  moraines.
B)  nunataks.
C)  tidewater glacier.
D)  icebergs.
E)  ice sheets.

Question 12

Which of the following is correct regarding the snowline?

Accepted Answer

A)  It increases in elevation with increasing latitude.
B)  It decreases in elevation with increasing latitude.
C)  It occurs at approximately the same elevation at all latitudes because the environmental lapse rate is approximately the same at all latitudes.
D)  It varies randomly and unpredictably.
E)  It occurs at approximately the same elevation at all longitudes because the environmental lapse rate is approximately the same at all longitudes. B

Question 13

The basal slip is usually ___than the internal plastic flow,resulting in the upper portion of the ____glacier flowing of the lower portion.

Accepted Answer

A)  less rapid;behind
B)  more rapid;ahead
C)  less rapid;ahead
D)  more rapid;both behind and ahead
E)  more rapid;behind

Question 14

An extensive,continuous mass of ice covering a continental scale is known as a(n)

Accepted Answer

A)  tidal glacier.
B)  ice sheet.
C)  piedmont glacier.
D)  tidewater glacier.
E)  ice cap.

Question 15

Which of the following is not correct regarding the Pleistocene?

Accepted Answer

A)  It represents a single,continuous cold spell.
B)  At its height almost a third of Earth was covered with ice.
C)  It began 2.6 mya and had at least 18 glacial/interglacial cycles.
D)  Ice sheets were far more extensive in the Northern Hemisphere than the Southern Hemisphere.
E)  In some areas,the ice sheets were more than 2 km (1.2 mi) thick.

Question 16

Saddle-like depressions formed by two eroding cirques are known as

Accepted Answer

A)  arêtes.
B)  eskers.
C)  drumlins.
D)  cols.
E)  horns.

Question 17

Which of the following is not evidence of recent changes in polar regions?

Accepted Answer

A)  decrease in Arctic sea-ice volume
B)  ice sheet darkening
C)  increase in melt ponds
D)  the breakup of ice shelves
E)  expansion of periglacial regions.

Question 18

Vatnajökull is the largest and most voluminous Icelandic glacier.It is roughly circular in shape,overlays several volcanoes,completely burying the underlying landscape,and covers an area of approximately 8,100 km2 (3,100 mi2) with an average thickness of 400 m (1,300 ft) .This is an example of an

Accepted Answer

A)  ice sheet.
B)  ice cap.
C)  ice field.
D)  alpine glacier.
E)  iceberg.

Question 19

The Great Lakes of North America were created by

Accepted Answer

A)  ice sheets that enlarged and deepened stream valleys.
B)  the melting of ice deposited in till plains of the Upper Midwest.
C)  cirque glaciers associated with the Pleistocene glaciation.
D)  isostatic subsidence of the crust.
E)  rising sea level associated with the retreat of the Pleistocene ice sheets.

Question 20

Vertical and horizontal movement caused by the expansion of freezing water are called

Accepted Answer

A)  frost heaving.
B)  frost thrusting.
C)  solifluction and gelifluction,respectively.
D)  frost heaving and frost thrusting,respectively.
E)  frost thrusting and frost heaving,respectively. D

Exam 17: Glacial Landscapes and the Cryosphere

Discuss the process of glacial erosion.

Correct AnswerverifiedA flowing glacier mechanically picks up ...View AnswerShow Answer

Describe the process of glacial movement.

Correct AnswerverifiedGlacial ice behaves as a plastic;it dist...View AnswerShow Answer

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

Frozen subsurface water in regions of permafrost is called

Correct AnswerverifiedShow Answer

The rapid change of snowflakes as they are on the ground is known as

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

____are small mountain lakes formed in cirques.

Correct AnswerverifiedShow Answer

A glacier confined in a bowl-shaped recess is known as a(n)

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedC

A glacier that ends in the sea is known as a(n)

Correct AnswerverifiedShow Answer

The process of calving produces

Correct AnswerverifiedShow Answer

Which of the following is correct regarding the snowline?

Correct AnswerverifiedB

The basal slip is usually ___than the internal plastic flow,resulting in the upper portion of the ____glacier flowing of the lower portion.

Correct AnswerverifiedShow Answer

An extensive,continuous mass of ice covering a continental scale is known as a(n)

Correct AnswerverifiedShow Answer

Which of the following is not correct regarding the Pleistocene?

Correct AnswerverifiedShow Answer

Saddle-like depressions formed by two eroding cirques are known as

Correct AnswerverifiedShow Answer

Which of the following is not evidence of recent changes in polar regions?

Correct AnswerverifiedShow Answer

Vatnajökull is the largest and most voluminous Icelandic glacier.It is roughly circular in shape,overlays several volcanoes,completely burying the underlying landscape,and covers an area of approximately 8,100 km2 (3,100 mi2) with an average thickness of 400 m (1,300 ft) .This is an example of an

Correct AnswerverifiedShow Answer

The Great Lakes of North America were created by

Correct AnswerverifiedShow Answer

Vertical and horizontal movement caused by the expansion of freezing water are called

Correct AnswerverifiedD

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A flowing glacier mechanically picks up ...
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C

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B

The basal slip is usually _than the internal plastic flow,resulting in the upper portion of the __glacier flowing of the lower portion.

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D