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What This The Coal Composed

We have What This The Coal Composed,Dec 15, 2017nbsp018332while coal is currently mined in 25 states, the main sources of us coal are highly concentrated. in 2016, almost 58 percent of all the coal produced in the united states came from just three stateskentucky, west virginia, and wyomingwith each contributing 6, 11, and 40 percent of us coal production, respectively .

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