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Coal is the official state mineral of Kentucky.
About: Dhanbad mines (a story of coal capital of india)
Abe kya dikha Lauda mines me mat ghur tera future khatare me h.......
mera gao v dhanbad hai or avi me BHU ki student hu
sir ap mujhe azadi se pehle dhanbad k koila udhayog k bare me bataye plz
mera gao hai dhanbad
Coal is extracted from the ground by coal mining, either underground by shaft mining, or at ground level by open pit mining extraction.
Coal is primarily used as a solid fuel to produce electricity and heat through combustion. World coal consumption was about 7.25 billion tonnes in 2010
The price of coal increased from around $30.00 per short ton in 2000 to around $150.00 per short ton as of September 2008.
In early 2015, it was trading near $56/ton.