COAL Coal is a combustible mineral formed from organic matter (mostly plant material) that lived about 300 million years ago (during the Pennsylvanian Period ).
(COAL Coal; is; a combustible mineral formed from organic matter (mostly plant material) that lived about 300 million years ago (during the Pennsylvanian Period )) (a combustible mineral; formed; from organic matter) (organic matter; lived; about; T:300 million years ago; T:during the Pennsylvanian Period)
COAL Coal a combustible mineral organic matter
is formed lived
a combustible mineral formed from organic matter (mostly plant material) that lived about 300 million years ago (during the Pennsylvanian Period )
from organic matter
about T:300 million years ago T:during the Pennsylvanian Period