15 Questions
What can happen in places where it is cold most of the year due to the timing of ice formation?
One season's ice may not freeze entirely before the next season's ice begins to form.
Why is the common glacier definition somewhat inaccurate?
Glaciers are not sheer-faced walls of pristine ice.
How are glaciers different from mountains of stone?
Glaciers can move, unlike mountains.
What environmental impact can glaciers have when they melt or move?
They push and carry along anything in their paths.
What is one of the most prominent signs of climate change on Earth related to glaciers?
Large-scale glacial retreat
Which of the following factors influence the speed of a glacier's movement?
Glacier type, amount of snowfall, meltwater, and temperature
What impact can the movement of a glacier have on the landscape?
It can cause depressions in the land and leave behind a jagged terrain
How do glaciers pick up rocks and boulders?
Through abrasion, where the bottom of the glacier pulls materials along, and plucking, where entire pieces of earth break off and become embedded in the glacier
What can cause the formation of glacial lakes?
The sheer weight of a glacier can create depressions in the ground, which can then be filled with meltwater
What is the current trend in glacier movement globally?
Glacial retreat has increased globally, with many smaller glaciers melting away entirely
What is the origin of the English word 'glacier'?
It originates from the Savoy dialect word 'glacière' meaning 'moving mass of ice'.
In the anatomy of a glacier, what is the accumulation zone?
The top part of the glacier where snowfall accumulates and adds to the glacier's mass.
What is the primary cause of crevasse formation in glaciers?
The uneven surface underneath the glacier causes the upper parts to crack.
Which process allows glaciers to move over obstacles or rough terrain?
Internal plastic deformation
What is the primary driving force behind glacier movement?
Gravity
Learn about the formation of glaciers, including the accumulation of ice, sediments, rocks, and debris that contribute to their growth. Explore how glaciers are not just sheer-faced walls of pristine ice but are complex formations.
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