Glaciers Move Because

question 71

Multiple Choice

Glaciers move because

• A)the weight of snow causes compaction at the base and the formation of ice,which becomes plastic-like.
• B)the gravitational pull on steep slopes causes avalanches that dislodge the snow accumulations.
• C)the rotation of the earth holds the snowfields back,thereby forcing them to move.
• D)tectonic forces from within the earth dislodge loose materials,such as great slabs of snow and ice.

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Definitions:

Protrusion

Something that sticks out from a surface, often as a result of a disease or injury, or is prominent.

Internal Organ

Any organ located inside the body's cavities, such as the heart, lungs, liver, or kidneys, performing essential functions.

Truss

A framework, typically consisting of rafters, posts, and struts, supporting a roof, bridge, or other structure.