Why Don't Tall Mountains in the Continental Crust Sink and Disappear

question 39

Multiple Choice

Why don't tall mountains in the continental crust sink and disappear into the partially melted asthenosphere?

• A) The asthenosphere is rigid and doesn't allow the mountain to sink.
• B) The continental crust is lighter than the asthenosphere so it can't sink.
• C) Mountains do sink into the asthenosphere, but only until they have displaced a volume of asthenosphere equal to their mass.
• D) The asthenosphere is constantly building up the mountain from below so it can't sink.

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Definitions:

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A perspective that suggests individual behavior is a result of both personal characteristics and situational factors.

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