Coal

coal_mining_jobs271pxCoal is a fossil fuel which is the largest source of energy for the generation of electricity globally, as well as one of the largest worldwide anthropogenic sources of carbon dioxide emissions. Coal originates from the massive build-up of dead land-based plant life, primarily trees. It is a readily combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins termed coal beds.

Share This