Question

elaborate the facts about coal found in india with the help of the points mentioned below;(a)its formation(b)as a source of energy(c)as a source of raw material(d)its main varieties​

Answer 1

Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy source because it takes millions of years to form. Coal contains the energy stored by plants that lived hundreds of millions of years ago in swampy forests.

Layers of dirt and rock covered the plants over millions of years. The resulting pressure and heat turned the plants into the substance we call coal.