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20191015 ensp 0183 enspCoal is a combustible black or brownishblack sedimentary rock formed as rock strata called coal seams Coal is mostly carbon with variable amounts of other elements chiefly hydrogen sulfur oxygen and nitrogen 1 Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over

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20131120 ensp 0183 enspMining for Coal We use two major methods to remove coal from the ground Look at Figure 7 as you read about these methods Strip Mining When coal deposits are at or near the surface strip mining is used Strip mining is the extraction of a mineral by removing a strip of the layers of soil and rock on top of the mineral deposit

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20191111 ensp 0183 enspCoal miners leaving an American mine at the end of a shift April 1974 Surface coal mining in Wyoming in the United States A coal mine in Bihar India A coal mine in Frameries Belgium Coal mining is the process of extracting coal from the ground Coal is valued for its energy content and since the 1880s has been widely used to generate

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2011123 ensp 0183 enspThe Carbon Cycle Overview of the Carbon Cycle The movement of carbon from one area to another is the basis for the carbon cycle Carbon is important for all life on Earth All living things are made up of carbon Carbon is produced by both natural and humanmade anthropogenic sources

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Big decisions loom for toxic ponds on Ohio River wcpo com Arsenic Lead Mercury Sulfuric Acid As much as 10 billion pounds of coal ash containing these toxins

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201815 ensp 0183 enspA drift mine is a mine in which the entry is directly into a horizontal coal seam exposed at or near the surface The most common type is the shaft mine These mines may be 400 to 1 000 feet deep Miners remove the coal by drilling a hole or shaft in the ground until they reach the layer of coal

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Clean coal ivolves carbon capture and storage or sequestration to reduce from the project for 20 years but the utilities challenged this on the grounds of cost In a post combustion process the flue gas is cooled and the CO2 removed by There is a range of ways of using natural gas primarily for power generation

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