Coal is a fossil fuel just like oil and natural gas. Whereas oil and natural gas come from the rests of microscopic organisms living in water (plankton, seashells, coral, etc.) deposited at the bottom of ancient seas, coal formed from the rests of plants of the past, the structure and form of which, albeit modified, can still be identified by means of a microscope. Types of Coal and Their UsesCarbon is the main component of coal after the other basic components of the original living matter … [Read more...] about Top 10 Coal Producing Countries in World