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Geology quiz questions!

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

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