What is the process by which the layers of a glacier flow at different speeds without breaking?
a. pyroclastic flow
b. basal sliding
c. ogive sliding
d. plastic flow

7. according to the theory of isostasy, which statement must be true? a. the asthenosphere is denser than the lithosphere. b. the asthenosphere has the same density as the lithosphere. c. the lithosphere has the same density as the core. d. the lithosphere is denser than the asthenosphere.

Drastic boundary changes can occur for all of the following reasons except for a. a shift in the way a river flows b. the collapse of a government system c. a conflict between two neighboring groups d. one country's decision to sell land to another country select the best answer from the choices provide

What distinguishes monsoon asia from the remainder of asia? what are the consequent differences between the two?