Assume that scientists are building a 3-D model to show how metamorphic rocks form around the magma body. Which relationship should the model emphasize?

Metamorphic rocks form when existing solid rock is changed by heat and pressure. These conditions reorganize the rock’s minerals and texture without melting it; if the rock melted and later cooled, it would form igneous rock instead. Therefore, the model should emphasize heat and pressure changing solid rock without melting.

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