Which of the physical processes below results in the formation of metamorphic rocks? A. heat and pressure B. weathering and erosion C. cooling and crystallization D. deposition and eruption
A. Heat and Pressure
The answer is A. heat and pressure Explanation: A metamorphic rock is a result of a transformation of a pre-existing rock. The original rock is subjected to very high heat and pressure, which cause obvious physical and/or chemical changes.