Coal Benefits
Coal is a very useful hard and black material collected from mines. The woods burned under the earth for a long time into coal by some chemical change. Earthquakes cuases vast forest areas to dip underground and help to bring about such changes due to tremendous heat and pressure.
In india coal mines are found at Asansol ,Raniganj, Dhanbad, Jharia, Giridih, Chaibasa, etc. India exports coal to Japan, Nepal and Bangladesh. Coal is used as fuel for domestic purposes and also in factories and industries.
Most of the trains and steamers move by consumig coal in steam engines but now they move towars technology era..
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