COAL

  coal       

    coal is a solid that mineral made up of carbon hydrogen Oxygen and nitrogen in verying proportions.

     coal is a fossil fuel and is the altered remains  remains of Prehistoric vegetation that originally accumulated in swamps and peat bogs.under conditions favourable to interrupt, preventing  the release of the stored solar energy . The energy is locked into the coal. 

coal formation began during the carboniferous period known as the first coal age  switch snapped 360 million to 290 million years ago .