Some limestones are examples of a sedimentary rock that was formed from chemical derived from the weathering (or breakdown) of a pre-existing rock.
(Some limestones; are; examples of a sedimentary rock) (a sedimentary rock; was formed; from chemical) (chemical; derived; from the weathering (or breakdown) of a pre-existing rock)
Some limestones a sedimentary rock chemical
are was formed derived
examples of a sedimentary rock
from chemical
from the weathering (or breakdown) of a pre-existing rock