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Coal: The Black Treasure
Definition Coal is a combustible black or brownish-black sedimentary rock, primarily composed of carbon along with hydrogen, oxygen, nitrogen, and sulfur, typically formed alongside earthy impurities underground.
History Humans have been using coal as a fuel source since ancient times. With the advent of the Industrial Revolution, coal consumption surged, becoming a primary energy source.
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Coal
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PT.HARTA BUMI RESOURCES
Coal Video
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