Both sedimentary and metamorphic rock may also be weathered and eroded to form sediment and then sedimentary rock, or melted to form magma when buried and subjected to sufficiently high temperature and pressure.
(Both sedimentary and metamorphic rock; may also be weathered; ) (Both sedimentary and metamorphic rock; eroded; to form sediment and then sedimentary rock, or melted to form magma)
Both sedimentary and metamorphic rock Both sedimentary and metamorphic rock
may also be weathered eroded
to form sediment and then sedimentary rock, or melted to form magma