At Depths of Greater Than 60 M,ice Moves by Plastic

question 35

Multiple Choice

At depths of greater than 60 m,ice moves by plastic deformation.What causes this transition from brittle to ductile behavior?

• A)An increase in temperature causes the glacier to melt and slide.
• B)An increase in pressure increases friction and melts the ice.
• C)An increase in the pressure allows for only minute deformation.
• D)A decrease in the amount of trapped sediments allows more flow.

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Definitions:

Defense Mechanism

A means used by the ego to defend against anxiety and to maintain self-esteem.

Metaphor

A figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable, suggesting a similarity.

Devil

A supernatural entity, often regarded as the chief antagonist of good in various religions and mythologies.

Id

The part of the mind in psychoanalytic theory responsible for instinctual impulses and demands for immediate satisfaction.