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Coal
coal in the context of the world energy supply
coal mining
fossil fuels
process of synthesizing coal into fuel
acid rain, form of air pollution caused by burning coal
coal technology
economics of coal production
formation
mining
original source of the energy found in fossil fuels
other fossil fuels and substances
pictures related to coal
pollution problems
quotations
regional coal reserves and mining industry
shipping on the Great Lakes-St. Lawrence system
transportation and storage
types of coal and coal residue
uses for coal
Energy Supply, World
Energy Supply, World, combined resources by which the nations of the world attempt to meet their energy needs. Energy is the basis of industrial...
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