Question

Isostatic rebound occurs when A. a volcano erupts, causing the emergence of new mountain ranges. B. the force of gravity decreases on a mountain, causing it to rise. C. the removal of mass from the crust causes the crust to rise. D. the addition of mass to the crust causes the crust to sink.

Answer 1

C. the removal of mass from the crust causes the crust to rise

Answer 2

The correct answer would be C. the removal of mass from the crust causes the crust to rise. This phenomenon is also referred to as post-glacial rebound and is seen for example where the level of the land rises after the mass of a glacier is removed at the end of an ice age.