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Science

Chapter 16 Vocabulaty

QuestionAnswer
mineral naturally occurring usually organic sold that has a characteristic chemical composition, an orderly internal structure and a characteristic set of physical properties
ore mineral minerals that are valuable and economical to extract
subsurface mining a mining method in which ore is extracted from beneath the ground surface `
surface mining a mining method in which soil and rocks are removed to reach underlying coal or minerals
placer deposits a deposit that contains a valuable mineral that has been concentrated by mechanical action
smelting the melting or fusing of ore in order to separate impurities from pure metal
subsidence the sinking of regions of the ground surface with little or no horizontal movement
reclamation the process of returning land to its original condition after mining is completed
Created by: Mel Doucet
 

 



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