Question

matamorphic rocks are formed due to ___ and ___ changes​

Answer 1

Answer:

Metamorphism. Any type of rock—igneous, sedimentary, or metamorphic—can become a metamorphic rock. All that is needed is enough heat and/or pressure to alter the existing rock's physical or chemical makeup without melting the rock entirely. Figure 2.

Answer 2

Answer:

metamorphic rocks are formed due to to the great effect of heat and pressure.