Which phenomenon leads to the formation of metamorphic rocks?
a. cooling of magma
b. deposition of sediments
c. heat and pressure
d. melting of rocks
e. minerals dissolving in water

The correct answer is C) heat and pressure.

The phenomenon that leads to the formation of metamorphic rocks.

Chemical alteration by heat and pressure create metamorphic rocks. Rocks on planet Eart are deformed and warped due to the action of plate tectonics, stress, and compression over many years. These rocks are then compacted so they are denser than their original material and there are not as sensitive to erosion.

c) should be the answer.