Years ago, coal was required for everything from cooking in homes to running trains. For a long time, the only means of lighting fire was coal, the cost of which was also lower than other inflammable materials. But as times changed, many modern facilities came among us. Gas for cooking, then room heater to avoid cold. Many things started running very easily with electricity, for which we once used coal. But even today we use coal in many things. But extracting coal is not as easy as using it. A…
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