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How is coal produced?

Updated: 9/11/2023
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13y ago

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Coal is a combustible black or brownish black sedimentary rock composed mostly of carbon and hydrocarbons. Coal is a non-rewable energy source, it takes millons of years to be made. It is found underground, so people build coal mines to get at it. miners dig it out.

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13y ago
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Q: How is coal produced?
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