What can be said about a mountain range that is being uplifted at 2 cm/year but is not growing any taller?
A) The crustal root is thinning at the same rate as the uplift.
B) The crustal root is thickening faster than the uplift.
C) The rate of erosion is the same as the rate of uplift.
D) The rate of erosion is higher than the rate of uplift.

Question

Quizplus · Accepted Answer

If the mountain range is being uplifted at a constant rate but is not growing any taller, it means that the rate of erosion is balancing out the rate of uplift. This suggests that the mountain range is undergoing a state of equilibrium, where the uplift and erosion rates are equal. Therefore, choice C is the correct answer. Options A and B are not possible because they suggest a change in the thickness of the crustal root, which is not mentioned in the question. Option D is also not possible because it suggests a decrease in height over time, which contradicts the fact that the mountain range is not growing any taller.

What Can Be Said About a Mountain Range That Is