Most Geologists Think the Elevation of Mountains Above Sea Level

Multiple Choice

Most geologists think the elevation of mountains above sea level is limited by earth's gravity because _______ .

A) rock cliffs are subject to gravity failure and can only be about 1km high
B) the earth's mantle is too weak to support the load of large mountains
C) thickening of the crust in mountain belts produces a weak deep crust the spreads by gravity collapse, limiting the elevation
D) rocks can never reach escape velocity