What happens to the crustal root of a mountain range as the mountains are slowly eroded away?
A)The crustal root is eroded away at the same rate.
B)The crustal root remains stationary.
C)The crustal root sinks deeper into the mantle.
D)The crustal root rises out of the mantle.

Question

Quizplus · Accepted Answer

As mountains are eroded, the crustal root rises due to isostatic rebound, which is the Earth's crust adjusting to maintain gravitational equilibrium.

What Happens to the Crustal Root of a Mountain Range