Posts Tagged :

coal mining industry

Unique Facts Of Coal

864 486 natasha

Coal is a combustible black or brownish-black semidentary rock, composed primarily of carbon along with variable quantities of other elements, such as hydrogen, sulfur, oxygen, and nitrogen. Coal is extracted from the ground by coal mining and has been used as energy resource. Here is some unique facts about coal. Do you know Titanic? Yes,…

read more