Moderate
Metamorphic rocks are formed from____________________?
Correct answer: C. Both a & b
- A. Igneous rocks
- B. Sedimentary rocks
- C. Both a & b
- D. Cleavage
Explanation
Metamorphic rocks develop when pre-existing igneous or sedimentary rocks are changed by heat, pressure, or chemically active fluids without melting. Cleavage is a structure commonly produced in some metamorphic rocks, not a parent rock.
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