What term describes a rock that has been altered by heat and pressure?

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Multiple Choice

What term describes a rock that has been altered by heat and pressure?

Explanation:
Rocks altered by heat and pressure undergo metamorphism, producing metamorphic rocks. In metamorphism, existing rocks are transformed while remaining solid; minerals recrystallize and may reorganize into aligned layers or bands, and new mineral combinations can form under higher temperatures and pressures. This is different from igneous rocks, which form from cooling molten material; a mineral is a single substance with a defined composition, not a rock; and a pipe is not a rock type but a geological feature or conduit. So the term for rock altered by heat and pressure is metamorphic rock.

Rocks altered by heat and pressure undergo metamorphism, producing metamorphic rocks. In metamorphism, existing rocks are transformed while remaining solid; minerals recrystallize and may reorganize into aligned layers or bands, and new mineral combinations can form under higher temperatures and pressures. This is different from igneous rocks, which form from cooling molten material; a mineral is a single substance with a defined composition, not a rock; and a pipe is not a rock type but a geological feature or conduit. So the term for rock altered by heat and pressure is metamorphic rock.

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