Question

explain coal formation​

Answer 1

Explanation:

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. ... Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years.

Answer 2

first the wood is burried inside the soil and then after millions of years when the temperature of earth increases and the wood starts to burn and when we dig it we find the coal