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| a natural material whose concentration of economically valuable minerals is high enough for th ematerail to be mined profitably |
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| a process that occurs when magma comes into contact with existing rock. |
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| a mineral deposit within a rock formation |
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| a deposit that contains a valuable mineral that has been concentrated by mechanical action. |
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| a mineral, rock, or organic material that can be used as jewelry or an ornament when it is cut and polished. |
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| lumps of minerals of the deep ocean floor that contain iron. |
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| a resource that forms at a rate that is much slower than the rate at which it is consumed. |
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| compounds of carbon adn hydrogen |
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| the partial decomposition of plant remains forms a brownish-black material |
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| peat is buried by other sediment. As heat an dpressure increase, peat becomes lignite. also called brown coal |
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| increased temperature and pressure turn lignite into bituminous coal, which is 80% carbon. Bituminous coal is also called soft coal. |
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| Under high temperature adn pressure conditions, bituminious coal eventuallyu becomes antracite which is the hardest form of coal. |
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| the process by which the nucleus of a heavy atom splits into two or more fragments; the process releases neutrons and energy. |
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| the process by which nuclei of small atoms combine to form new, more massive nuclei; the process releases energy. |
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| a natural resource that can be replaced at the same rate at which the resouce is consumed. |
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| the energy produced by heat within Earth. |
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| the energy recived by Earth for the sun in th eform of radiation. |
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electrical energy produced by the flow of water |
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| plant material, manure, or any ofther organic matter that is used as an energy source. |
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| the preservation adn wise use of natural resources |
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| the process of recovering valuable or useful materials from waste or scrap; the process of reusing some items |
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| sedimentary rock with carbon |
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| primarily carbon and hydrogen |
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| fossil fuel of mostly methane |
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| complex mixture of hydrocarbon oil |
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| precipitation such as rain sleet or snow that contains a high concentration of acids often because of the pollution of the atmosphere |
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