Geology quiz questions! – Flashcards
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Hydrothermal mineral deposits would be least expected to form in what type of plate tectonic setting?
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Transform Boundary
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If surface mines tend to cause greater environmental impacts, why are they used?
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Surface mines are more economical
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How is biotechnology helping to reduce the environmental impacts of mining?
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Through efficient treatment of mine wastes and contaminated water
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What is the principal reason that iron and steel are recycled at such a high rate?
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The market for steel is large and widespread
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Why is cyanide heap leaching used to extract gold from some deposits?
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The gold concentration is too low to be extracted using traditional methods
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Most water pollution associated with mining operations has to do with
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Water passing through mine wastes
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What phase of mining generally causes the least environmental degradation?
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Exploration and testing
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Biotechnology map help to reduce to use of what hazardous chemical in ore processing?
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Cyanide
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What element represents the greatest amount of recycling by volume?
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Iron
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The ________ of a metal is a measure of its concentration necessary for profitable mining?
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Concentration factor
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The main drawback of composting as a waste reduction strategy is
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the necessity to separate organic waste from nonorganic waste
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What is the most important consideration in site selection for a sanitary landfill?
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Geological and climatic conditions that will limit water flow through the landfill
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Why is it necessary to rethink strategies of solid waste management?
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Waste generation from urban areas is increasing rapidly
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Deep-well disposal of hazardous wastes can result in
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earthquakes
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Why has integrated waste management been criticized?
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Overemphasis on recycling
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What is leachate?
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A mineralized liquid generated by water flow through landfills
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The concept of industrial ecology is
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Waste from one part of a society is used as a resource for another
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Anomalously rapid movement of glacial ice is termed what?
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Surging
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______ is largely responsible for keeping northern Eurpose relatively wam.
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The ocean's conveyor belt
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The dominant form of anthropogenic climate forcing is the emission of____
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Carbon dioxide
