Question

describe in brief the process of coal formation​

Answer 1

Coal formed millions of years ago when the earth was covered with huge swampy forests where plants - giant ferns, reeds and mosses - grew. ... Heat and pressure produced chemical and physical changes in the plant layers which forced out oxygen and left rich carbon deposits.

Answer 2

Explanation:

coal is formed from remains of dead plants and animals.The process of conversion of remains of dead plants and animals into coal is called carbonisation