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, the British passenger liner that sank in the North Atlantic Ocean in 1912 and was main idea of the famous American epic romance-disaster film by James Cameron. The ship’s coal stores had been burning for weeks before set sail which damaging the starboard side of the […]