The correct answer is A) heat and pressure. Metamorphic rocks are formed from existing igneous or sedimentary rocks when they are subjected to high temperatures and pressures, which alters their mineral composition and structure without melting them.
Which is needed to turn an igneous rock or sedimentary rock into a metamorphic rock a heat and pressure B melting and cooling C erosion and deposition D freezing and cementation
1 answer
1 answer