Mining Question Preview (ID: 5554)
Mining And Environmnent.
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The properties of minerals are determined by
a) stregnth of chemical bonds
b) where they are found
c) how long ago they were formed
d) what state they are in
This mineral is used in ammunition and glass
a) lead
b) gold
c) silver
d) gypsum
Which of the following is an example of a subsurface mine?
a) room and pillar
b) quarries
c) open pit
d) placer
Minerals that have no commerical value are
a) gaunge minerals
b) ore minerals
c) alloys
d) test minerals
In general, non-metals are
a) conductive
b) insulators
c) shinny
d) maleable
Often valuable minerals are found in this form
a) ore
b) overburden
c) gaunge
d) slag
Iron is used to make this alloy
a) steel
b) lead
c) gold
d) aluminum
If the strip ratio is high this type of mine might be used
a) room and pillar
b) quarry
c) open pit
d) placer
What is the contaminant that might cause AMD
a) sulfuric acid
b) methane
c) flux
d) carbon
Layers of impurities that form during smelting are called
a) slag
b) dredge
c) gaunge
d) overburden
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