APES Pre-Lab Formative Assessment

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APES Pre-Lab Formative Assessment
Copper Extraction and Mine Reclamation and
Chapter 14 and 15

• Each of the following is a type of surface mining
  EXCEPT
• Open-pit mining
• Vertical shaft mining
• Contour strip mining
• Mountain top removal
• Area strip mining

• 2. Smelting is
• A way to remove the desired metal from the ore
  using heat and chemicals
• Used to separate the ore mineral from the gangue
• A way to reprocess old mine tailings
• Both a and b are correct
• a, b, and c are correct

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• 3. Today, each of the following is a limiting
  factor in the mining of lower grade ores EXCEPT
• a. Increased cost of mining
• b. Decreased cost of mining
• c. Processing larger volumes of ore
• d. Availability of freshwater needed in the
  processing
• e. Increased land disruption and environmental
  impact
• When an oceanic plate collides with a continental
  plate
• a. The oceanic plate usually rides up over the
  continental plate
• b. Oceanic ridges form
• c. The continental plate usually rides up over
  the oceanic plate
• d. Subduction zones form
• e. Both c and d are correct

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• 5. Natural gas is a mixture of gases, but
  primarily (50-90)...
• a. C4H10 (butane)
• b. C2H6 (ethane)
• c. CH4 (methane)
• d. C3H8 (Propane)
• e. H2S (hydrogen sulfide)
• By far, most of the electricity in the United
  States is produced by
• a. Burning LPG
• b. Burning LNG
• c. Nuclear fusion
• d. Nuclear fission
• e. Burning coal

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• 7. Each of the following is an advantage of using
  Nuclear Power EXCEPT
• a. There is a large fuel supply
• b. Moderate land disruption
• c. Relatively low environmental impact (without
  accidents)
• d. Low net energy yield
• e. Low risk of accidents
• _____________ is a way to help prevent possible
  collapse, and dispose of the ore in an
  environmentally friendly manner.
• a. A slag heap
• b. Subsidence
• c. Backfilling
• d. Leaching
• e. SX/EW

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9. To reduce the effects of mine waste runoff,
surface runoff is often a. Collected and
diverted around waste dumps b. Filtered
thoroughly before being allowed to re-enter the
environment. c. Collected and allowed to
evaporate d. Sent to waste-water management
systems e. All of the above are correct 10. A
less expensive, and more environmentally and
economically friendly way to reclaim old mines,
rather than using topsoil, is the use of a.
FYM (farmyard manure) b. The leach-solvent
extraction-electrowinning process (SX/EW) c.
Biosolids d. Municipal sewage sludge e. Both
c and d are correct
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BONUS10 POINTS
Discuss two ways that the use of silica sand
(which accounts for nearly 61 of the tailings
composition of copper ore) helps the environment