Junior Class 5 Answered

Coal is formed by dead remains of plants. Millions of years ago vegetation in forests got trapped under soil layers due to earthquakes and volcanic eruptions. More soil layers got deposited on it and it went deeper beneath the earth. This raised the temperature and pressure beneath the soil. This initiated the process of burning these dead remains. Slowly all the vegetations got converted into coal which is a rich form of carbon. This whole process is also called carbonisation.

1.Coal is used in various industries as both domestic and an industrial fuel, that is, in homes, thermal power stations and furnaces.

2.It is processed in the industry to obtain useful products such as coke, coal tar and coal gas.

3.It is used in the manufacture of synthetic petrol.

4.It is also an important requirement for the manufacture of some fertilizers, drugs, rubber, wax, synthetic textiles and perfumes.