Question

Which phrase describes how metamorphic rocks form?

form from melting
form at Earth’s surface
form from sediments
form from existing rocks

Answer 1

Answer:

please mark my answer brilliant

Explanation:

these rocks started out as some other type of rock ,but have been substantially changed from their original igneous, sedimentary, or eardier metamorphic from .

Metamorphic rock from when rock are subjected to high heat pressure and hot mineral rich fluid or more commonly

some combination of these factors