Independent of any local scale erosion or deposition, thick accumulations of ice load the crust and upper mantle ________.
A)causing the crust to subside
B)causing the crust to drift laterally, instigating major tectonic motions
C)causing the crust to rise up with an immediate elastic rebound
D)causing the crust to thrust and fold like in a mountain building event

Question

Quizplus · Accepted Answer

Thick accumulations of ice load the crust and upper mantle, causing the crust to subside due to the weight of the ice. This is a response to the added pressure and not related to tectonic activity or immediate elastic rebound.

Independent of Any Local Scale Erosion or Deposition, Thick Accumulations