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WorksheetsChapter 17: Glacial Landscapes and the Cryosphere Quiz
Total questions: 20
Worksheet time: 15mins
The portion of Earth consisting of perennially frozen freshwater, saltwater, and the ground is known as the
biosphere.
atmosphere.
lithosphere.
cryosphere.
Approximately, what percentage of the Earth's freshwater is frozen?
10%
15%
50%
75%
The bulk of ice on Earth is in
North America, specifically Alaska.
European and Asian mountain ranges.
Greenland and Antarctica.
Argentina and Chile.
A snowline refers to
the latitude or elevation at which winter snow accumulates each year.
the latitude demarcating the extent of glacial ice during the last glacial maximum.
an isoline demarcating the extent of snow or ice on a weather map.
the elevation at which snow accumulation ceases, marking the uppermost point of a glacier.
Glacial ice is
essentially the same as snow.
produced over a period of many years.
composed primarily of sedimentary rock.
annually formed high altitudes and latitudes in fall and melts away by spring/early summer.
A general term for a mass of perennial ice, resting on land or floating in the sea attached to a landmass is
the snowline.
an iceberg.
a glacier.
a moraine.
The two main types of glaciers are
alpine glaciers and continental ice sheets.
moraine glaciers and alpine glaciers.
tidewater glaciers and continental glaciers.
cirque glaciers and alpine glaciers.
Presently, glaciers cover approximately ________ percent of Earth's land area.
3
7
10
22
A glacier confined within a valley that originally was formed by stream action is called a(n)
ice cap.
cirque glacier.
valley glacier.
tidewater glacier.
Alpine glaciers include all of the following except a(n)
ice cap.
piedmont glacier.
cirque glacier.
valley glacier.
An extensive, continuous mass of ice covering a continental scale is known as a(n)
tidal glacier.
ice sheet.
piedmont glacier.
tidewater glacier.
In terms of areal extent, which of the following sequences is ordered from largest to smallest extent covered?
ice sheet, ice field, ice cap, alpine glacier
ice sheet, ice cap, ice field, alpine glacier
alpine glacier, ice field, ice cap, ice sheet
ice sheet, alpine glacier, ice field, ice cap
The ________ of a glacier is where snowfall and moisture collect and compact to ice in the winter, and ice persists throughout the summer.
ice field
accumulation zone
snow line
terminal moraine
The various processes that result in the loss of a glacier's mass are known collectively as
sublimation.
deflation.
ablation.
accumulation.
Which of the following is incorrect about glacial movement?
Glaciers move under the pressure of their own weight and the pull of gravity.
Glaciers move in streamlike patterns, merging as tributaries into large rivers of ice.
Glacial movement produces distinct landforms.
Glaciers are mostly stationary, only moving several centimeters over tens of years.
All of the following are related to glacial erosion except
V-shaped valleys.
abrasion.
plucking.
erratics.
________ are small mountain lakes formed in cirques.
Cols
Horns
Hanging valleys
Tarns
A(n) ________ is a valley carved by a small tributary glacier stranded high above the mail valley floor because the primary glacier eroded the main valley much deeper.
col
horn
hanging valley
tarns
A class of landforms formed by the accumulation of glacial till are known as
drift.
alluvium.
outwash.
moraines.
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)
outwash plain.
till plain.
drumlin swarm.
lateral moraine.
