Question

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which types of rock can become metamorphic rock?
both igneous and metamorphic rock
both igneous and sedimentary rock
clastic sedimentary rock
clastic or chemical sedimentary rock

Explanation:

Metamorphic rocks form from pre - existing rocks (igneous or sedimentary) through metamorphism (heat, pressure, and chemical processes). Igneous rocks (formed from magma/lava) and sedimentary rocks (formed from sediment accumulation) can undergo these changes. Clastic or chemical sedimentary rock is too narrow as it only refers to sedimentary types. Metamorphic rock cannot form from itself in the context of the basic rock cycle (it would just be further metamorphosed but the question is about the initial formation from other rock types).

Answer:

both igneous and sedimentary rock