Metamorphic rock is formed
A)by the solidification of molten rock.
B)when existing rocks undergo changes caused by increases in pressure, temperature, or both.
C)by the cementing together of solid grains, or by the precipitation of minerals out of water solutions, at or near the Earth's surface.
D)through weathering processes at or near Earth's surface.

Question

Quizplus · Accepted Answer

Metamorphic rock is formed when existing rocks undergo changes caused by increases in pressure, temperature, or both. This process is called metamorphism. It usually occurs deep beneath the Earth's surface.

Metamorphic Rock Is Formed