How does the addition of water cause melting?
A) it heats the rocks
B) it decreases the pressure on the rocks
C) it increases the temperature while decreasing the pressure
D) it changes the location of the liquid-solid boundary

Question

Quizplus · Accepted Answer

The addition of water can lower the melting point of rocks, effectively changing the location of the liquid-solid boundary in a phase diagram. This doesn't necessarily heat the rocks, decrease the overall pressure, or increase the temperature while decreasing the pressure, but rather affects the conditions under which rock melts by altering the chemical environment.

How Does the Addition of Water Cause Melting