Question

................. or .................. create metamorphic rocks​

Answer 1

Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

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Answer 2

high heat and high pressure create metamorphic rocks