Question

coal is a inflammable fuel. give reason

Answer 1

Coal is a flammable black hard rock used as a solid fossil fuel. It is mainly made up of 65-95% carbon and also contains hydrogen, sulphur, oxygen and nitrogen. It is a sedimentary rock formed from peat, by the pressure of rocks laid down later on top. The harder forms of coal, such as anthracite, are metamorphic rocks because they were changed by higher temperature and pressure. it isalso a sedimentary rock .

Answer 2

Coal having four types
1- peat
2-lignite
3-bituminous
4- anthracite
All are having volatile matter so its ignite easily....