Exam 14: Snow Into Ice--The Basis of Glaciers

arrow
  • Select Tags
search iconSearch Question
flashcardsStudy Flashcards
  • Select Tags

Firn has a higher density than glacial ice.

(True/False)
4.7/5
(97)

The Great Lakes of the United States resulted from repeated glacial advances and retreats which enlarged and deepened stream valleys to form the basins of the future lakes.

(True/False)
4.9/5
(78)

Partly compacted snow that is intermediate between snow and ice is called a(n)

(Multiple Choice)
4.9/5
(75)

Materials transported directly by glaciers tend to be unsorted when deposited,but those carried by meltwater are sorted.

(True/False)
5.0/5
(80)

A lake that fills a steep-sided depression that is left in ground moraine by a large block of stranded ice that melts is called a(n)

(Multiple Choice)
4.9/5
(75)

When several cirque glaciers gouge an individual mountain summit from all sides,a pyramidal peak known as a_________ results.

(Multiple Choice)
4.7/5
(86)

The ice sheets of Greenland and Antarctica have an average thickness of about 2 km (1.24 mi).

(True/False)
4.8/5
(80)

Eroded debris dropped at the glacierʹs farthest extent is called _________moraine.

(Multiple Choice)
4.8/5
(77)

The Arctic region is defined based on the July 10°C (50°F)isotherm whereas the Antarctic region is defined based on the February 10°C (50°F)isotherm.

(True/False)
4.9/5
(76)

Which of the following has NOT been cited as a possible cause of ice sheet darkening?

(Multiple Choice)
4.7/5
(74)

If two glaciers with lengthy ridges of till along each side of the glacier merge,a _________moraine may form.

(Multiple Choice)
4.8/5
(77)

The origins of glacial landforms are difficult to ascertain because glaciers produce landforms that are similar to landforms made by fluvial processes.

(True/False)
4.8/5
(71)

Overall,the Arctic is much cooler than Antarctic.

(True/False)
4.8/5
(77)

Cirques,horns,cols,and arête are example of depositional landforms from ice sheets.

(True/False)
4.9/5
(79)

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

(Multiple Choice)
4.8/5
(86)

A glacierʹs mass balance is determined by

(Multiple Choice)
5.0/5
(83)

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

(Multiple Choice)
4.9/5
(74)

About half of Arctic sea-ice volume has disappeared since 1970 due to warming throughout the region.

(True/False)
4.8/5
(79)

Permafrost requires soil,sediment,or rock temperatures to remain below freezing for at least 2 years.

(True/False)
4.8/5
(81)

Which of the following is NOT an erosional feature formed by an alpine glacier?

(Multiple Choice)
5.0/5
(78)
Showing 21 - 40 of 140
close modal

Filters

  • Essay(0)
  • Multiple Choice(0)
  • Short Answer(0)
  • True False(0)
  • Matching(0)