Earth Resources

Steven Dutch, Natural and Applied Sciences,University of Wisconsin - Green Bay
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  1. Most of the world's oil is in:
    1. a relatively small number of large oil fields
    2. thousands of small oil fields
  2. The ancestral material of coal:
    1. woody material
    2. vertebrate fossils
    3. marine plankton
    4. carbonate rocks
  3. Geothermal energy is commonly affected by all of the following problems except:
    1. low efficiency
    2. mineral deposits clogging pipes
    3. depletion of steam
    4. corrosion
    5. excessively high temperatures
  4. After ore is blasted loose, the next step in extracting metal is:
    1. milling
    2. smelting
    3. flotation
    4. crushing
    5. tailings disposal
  5. The molten silicate residue that floats to the top during ore smelting:
    1. tailings
    2. slag
    3. gangue
    4. none of the above
  6. Mineral deposits where heavy minerals are concentrated by stream or wave action are called:
    1. hydrothermal
    2. hydraulic
    3. stratiform
    4. placer
    5. residual
  7. The most abundant metal in the crust:
    1. iron
    2. copper
    3. nickel
    4. aluminum
    5. titanium
  8. Which is not a major type of ore-forming environment?
    1. magmatic
    2. hydrothermal
    3. sedimentary
    4. placer
    5. metamorphic
  9. The parent material of petroleum:
    1. woody material
    2. vertebrate fossils
    3. marine plankton
    4. carbonate rocks
  10. Secondary enrichment makes low-grade ores into richer ores by:
    1. weathering
    2. metamorphism
    3. deformation
    4. igneous activity
    5. evaporation

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    Created 3 May 1999, Last Update 24 Feb 2011

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