Chapter 16 Exam: Mining and Mineral Resources
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30 questions
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- Q1What is a mixture of two or more metals that are not chemically combined?alloyevaporitefluxslag30s
- Q2Which of the following is a water contaminant that can cause acid mine drainage?methanesulfuric acidfluxcarbon dioxide30s
- Q3Which is a mining method used for large ore deposits near the surface that are mined downward?smeltingroom-and-pillar mininglong wall miningsurface mining30s
- Q4What is the process of returning land to its original or better condition after mining?dredgingsubsidencereclamationsmelting30s
- Q5What is the process by which crushed ore is melted at high temperatures to separate impurities from molten metal?dredgingreclamationsubsidencesmelting30s
- Q6Sand, gravel, and crushed rock are all examples of ______________________.evaporitesore mineralsaggregatesslag30s
- Q7What is the sinking of regions of the ground with little or no horizontal movement?dredginghydrothermal solution miningfluxsubsidence30s
- Q8Which of the following is NOT mined by dredging?diamondsevaporitesplacer goldheavy minerals30s
- Q9__________________ deposits occur when minerals are concentrated by wind and water movement into surface deposits.QuarryGangueAggregatePlacer30s
- Q10Salts left behind after evaporation are known as ___________________.fluxgangue mineralsslagevaporites30s
- Q11A ________________ is an open pit used to mine materials near the surface.long walldredgeshearerquarry30s
- Q12What is material that bonds with impurities and separates them from molten metal during smelting?fluxslagpotashgangue30s
- Q13Minerals are arranged in a regular, repeating geometric pattern of _____________.metalsaggregatesatomsevaporites30s
- Q14Which of the following is not a method of subsurface mining?open-pit miningroom-and-pillar miningsolution mininglong wall mining30s
- Q15Gangue mineralsare native elements.are the most difficult of all materials to mine.are valued for their rarity and durability.have no commercial value.30s