Author Question: Rocks can begin to melt if A) a decrease in pressure results in a sufficient decrease in the ... (Read 197 times)

809779 · **on:** Jul 29, 2018

Rocks can begin to melt if

A) a decrease in pressure results in a sufficient decrease in the rock's melting point.
B) the rock's water content increases thereby decreasing the rock's melting point.
C) heated by rising magma from the Earth's interior.
D) all of the above.
E) none of the above.

Question 2

Metamorphism caused by the alteration of rock by both thermal and mechanical means is called

A) contact metamorphism.
B) dynamic metamorphism.
C) regional metamorphism.
D) none of the above