Multiple Choice
Most geologists think the elevation of mountains above sea level is limited by earth's gravity because ________.
A) rocks can never reach escape velocity
B) rock cliffs are subject to gravity failure and can only be about 1km high
C) the earth's mantle is too weak to support the load of large mountains
D) thickening of the crust in mountain belts produces a weak deep crust the spreads by gravity collapse,limiting the elevation
Correct Answer:

Verified
Correct Answer:
Verified
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