Multiple Choice
What are mill tailings?
A) finely ground rock left over from processing mineral ores
B) water that flows past exposed rock in mines,leaching out sulfates which react with water and oxygen to form acids
C) a method to process ore using less water than usual
D) a pond to store lightweight waste
E) pipes to take waste from one area to another
Correct Answer:
Verified
Correct Answer:
Verified
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