Metamorphic rocks may form from:
A) igneous rocks.
B) sedimentary rocks.
C) other metamorphic rocks.
D) both igneous and sedimentary rocks.
E) igneous, sedimentary, or metamorphic rocks.

Question

Quizplus · Accepted Answer

Metamorphic rocks can form from igneous, sedimentary, or other metamorphic rocks through the process of metamorphism, which involves the alteration of the rock's mineral composition or structure by heat, pressure, or chemically active fluids.

Metamorphic Rocks May Form From