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Glacier Formation Overview

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Questions and Answers

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. (correct)

The ice remains frozen throughout the year without any changes.

Ice formation never occurs.

Ice formation only happens during the warm seasons.

Why is the common glacier definition somewhat inaccurate?

Glaciers are sheer-faced walls of pristine ice.

Glaciers are not sheer-faced walls of pristine ice. (correct)

Glaciers are not made of ice.

Glaciers never move.

How are glaciers different from mountains of stone?

Glaciers are smaller in size compared to mountains.

Glaciers do not move, unlike mountains.

Glaciers can move, unlike mountains. (correct)

Glaciers are always solid structures, unlike mountains.

What environmental impact can glaciers have when they melt or move?

They push and carry along anything in their paths. Signup and view all the answers

What is one of the most prominent signs of climate change on Earth related to glaciers?

Large-scale glacial retreat Signup and view all the answers

Which of the following factors influence the speed of a glacier's movement?

Glacier type, amount of snowfall, meltwater, and temperature Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

What is the current trend in glacier movement globally?

Glacial retreat has increased globally, with many smaller glaciers melting away entirely Signup and view all the answers

What is the origin of the English word 'glacier'?

It originates from the Savoy dialect word 'glacière' meaning 'moving mass of ice'. Signup and view all the answers

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. Signup and view all the answers

What is the primary cause of crevasse formation in glaciers?

The uneven surface underneath the glacier causes the upper parts to crack. Signup and view all the answers

Which process allows glaciers to move over obstacles or rough terrain?

Internal plastic deformation Signup and view all the answers

What is the primary driving force behind glacier movement?

Gravity Signup and view all the answers