NS107 Chapter 7: Glaciers And Arid
Landscapes Exam Latest Update
Which of the following is NOT a glacier?
a) Ice Sheet
b) Alpine Glacier
c) Sea Ice
d) Ice Cap - ANSWER c) Sea Ice
Sea Ice - ANSWER Frozen sea water that is associated with polar regions.
What does it mean when a glacier is stationary?
a) The glacier is not moving
b) Accumulation exceeds wastage
c) Accumulation is less that wastage
d) Accumulation and wastage are approximately equal - ANSWER d)
Accumulation and wastage are approximately equal
Ice Sheet - ANSWER a very large, thick mass of glacial ice flowing outward in all
directions from one or more accumulation center(s)
Alpine Glacier - ANSWER A glacier confined to a mountain valley, which in most
instances had previously been a stream valley.
Ice Cap - ANSWER a mass of glacial ice covering a high upland or plateau and
spreading out radially
What happens to glacial movement when accumulation is greater that wastage?
- ANSWER glacial advance
What happens to glacial movement when accumulation and wastage are
approximately the same? - ANSWER stationary terminus
What happens to glacial movement when accumulation is less than wastage? -
ANSWER glacial retreat
, As a glacier moves over bedrock it gradually loosens and lifts blocks of rock,
which are then carried along by the ice. This process is called ___________.
a)plucking
b)abrasion
c)striations
d)calving - ANSWER a) plucking
Plucking - ANSWER The process by which a glacier picks up rocks as it flows
over the land
Abrasion - ANSWER the grinding and scraping of a rock surface by the friction
and impact of rock particles carried by water, wind, or ice
glacial striations - ANSWER Scratches and grooves on bedrock caused by
glacial abrasion
Calving - ANSWER the breaking off of large pieces of ice
Which of the following is NOT a feature typical of an area eroded by valley
glaciers?
a)Hanging valley
b)V-shaped valley
c)Cirque
d)Horn - ANSWER b) V-shaped valley
Hanging Valley - ANSWER a tributary that enters a glacial trough high above the
floor of the trough
Cirque - ANSWER an amphitheater-shaped basin at the head of a glaciated
valley produced by frost wedging and plucking
Horn - ANSWER a pyramid-like peak formed by glacial action in 3 or more
cirques surrounding a mountain summit
How are the sediments deposited by rivers different from those deposited by
glaciers?
a)Sediments deposited by rivers are more weathered.
b)Sediments deposited by glaciers tend to be transported farther than those
deposited by rivers.
c)Sediments deposited by glaciers tend to be unsorted and contain many
particle sizes.
Landscapes Exam Latest Update
Which of the following is NOT a glacier?
a) Ice Sheet
b) Alpine Glacier
c) Sea Ice
d) Ice Cap - ANSWER c) Sea Ice
Sea Ice - ANSWER Frozen sea water that is associated with polar regions.
What does it mean when a glacier is stationary?
a) The glacier is not moving
b) Accumulation exceeds wastage
c) Accumulation is less that wastage
d) Accumulation and wastage are approximately equal - ANSWER d)
Accumulation and wastage are approximately equal
Ice Sheet - ANSWER a very large, thick mass of glacial ice flowing outward in all
directions from one or more accumulation center(s)
Alpine Glacier - ANSWER A glacier confined to a mountain valley, which in most
instances had previously been a stream valley.
Ice Cap - ANSWER a mass of glacial ice covering a high upland or plateau and
spreading out radially
What happens to glacial movement when accumulation is greater that wastage?
- ANSWER glacial advance
What happens to glacial movement when accumulation and wastage are
approximately the same? - ANSWER stationary terminus
What happens to glacial movement when accumulation is less than wastage? -
ANSWER glacial retreat
, As a glacier moves over bedrock it gradually loosens and lifts blocks of rock,
which are then carried along by the ice. This process is called ___________.
a)plucking
b)abrasion
c)striations
d)calving - ANSWER a) plucking
Plucking - ANSWER The process by which a glacier picks up rocks as it flows
over the land
Abrasion - ANSWER the grinding and scraping of a rock surface by the friction
and impact of rock particles carried by water, wind, or ice
glacial striations - ANSWER Scratches and grooves on bedrock caused by
glacial abrasion
Calving - ANSWER the breaking off of large pieces of ice
Which of the following is NOT a feature typical of an area eroded by valley
glaciers?
a)Hanging valley
b)V-shaped valley
c)Cirque
d)Horn - ANSWER b) V-shaped valley
Hanging Valley - ANSWER a tributary that enters a glacial trough high above the
floor of the trough
Cirque - ANSWER an amphitheater-shaped basin at the head of a glaciated
valley produced by frost wedging and plucking
Horn - ANSWER a pyramid-like peak formed by glacial action in 3 or more
cirques surrounding a mountain summit
How are the sediments deposited by rivers different from those deposited by
glaciers?
a)Sediments deposited by rivers are more weathered.
b)Sediments deposited by glaciers tend to be transported farther than those
deposited by rivers.
c)Sediments deposited by glaciers tend to be unsorted and contain many
particle sizes.
