What Best Describes Metamorphic Rocks?

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Multiple Choice

What Best Describes Metamorphic Rocks?

Explanation:
Metamorphic rocks are formed when existing rocks are transformed by heat and pressure while remaining solid, often with chemically active fluids involved. This combination changes the minerals and their arrangement, so the rock’s texture and mineralogy reconfigure without melting. The result can be features like foliation, where minerals align in layers due to directional pressure. This is different from sedimentary rocks, which are built up from cemented grains or deposited materials, and from erosion, which wears rocks away.

Metamorphic rocks are formed when existing rocks are transformed by heat and pressure while remaining solid, often with chemically active fluids involved. This combination changes the minerals and their arrangement, so the rock’s texture and mineralogy reconfigure without melting. The result can be features like foliation, where minerals align in layers due to directional pressure. This is different from sedimentary rocks, which are built up from cemented grains or deposited materials, and from erosion, which wears rocks away.

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