Over time, these dark-colored plant remains may be buried, compacted, and cemented and form an organic sedimentary rock known as coal , that may form coal seams between layers of other sedimentary rock such as sandstone and limestone.
(these dark-colored plant; remains; may be buried, compacted, and cemented and form an organic sedimentary rock; T:Over time) (an organic sedimentary rock known as coal; may form; coal seams between layers of other sedimentary rock such as sandstone and limestone) (these dark-colored plant; may be buried; )
these dark-colored plant an organic sedimentary rock known as coal these dark-colored plant
remains may form may be buried
may be buried, compacted, and cemented and form an organic sedimentary rock T:Over time
coal seams between layers of other sedimentary rock such as sandstone and limestone