Malik Hooker Womens Jersey  History of Coal Miners | Coal Miners Day Friday, 4 May | Fact Videos | Science & Technology





History of Coal Miners | Coal Miners Day Friday, 4 May | Fact Videos | Science & Technology



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Coal is the official state mineral of Kentucky.


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About: History of Coal Miners | Coal Miners Day Friday, 4 May | Fact Videos | Science & Technology


Interesting akka
Few videos on days to remember is also GENERAL SCIENCE. Hope people will understand. I think its helpful.


Coal stock


Coal is extracted from the ground by coal mining, either underground by shaft mining, or at ground level by open pit mining extraction.

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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.