Metamorphic rock is igneous or sedimentary rock that has been heated and squeezed.
(Metamorphic rock; is; igneous or sedimentary rock that has been heated and squeezed) (igneous or sedimentary rock; has been heated; ) (igneous or sedimentary rock; squeezed; )
Metamorphic rock igneous or sedimentary rock igneous or sedimentary rock
is has been heated squeezed
igneous or sedimentary rock that has been heated and squeezed