The Earth's temperature increases with depth.Pressure also increases with depth from the weight of the rock above.As pressure increases the
A)rock above begins to melt.
B)melting point of the rock (at depth)decreases.
C)melting point of the rock (at depth)also increases.
D)temperature increases,rocks begin to melt.

Question

Quizplus · Accepted Answer

The melting point of rock increases with depth due to the increase in pressure. As pressure increases, it requires a higher temperature for the rock to melt, thus raising its melting point.

The Earth's Temperature Increases with Depth