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Mining Coal Form

fossil energy study guide 300 million years,coal mining and transportation most coal is buried under the ground. if coal is near the surface, miners dig it up with huge machines. first, they scrape off the dirt and rock, then dig out the coal. th is is called surface mining. after the coal is mined, they put back the dirt and rock. th ey plant trees and grass. th e land can then be used.coal prices and outlook us energy information,oct 09, 2020 the price of coal varies by coal rank and grade, mining method, and geographic region.. coal is classified into four main rankslignite, subbituminous, bituminous, and anthracitedepending on the amounts and types of carbon it contains and the amount of heat energy it can produce..

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