Multiple Choice
Why is cyanide heap leaching used to extract gold from some deposits?
A) The gold concentration is too low to be extracted using traditional methods.
B) It is safer than other methods.
C) Gold can only be extracted from finely disseminated deposits.
D) It produces fewer mine tailings than other methods.
Correct Answer:

Verified
Correct Answer:
Verified
Q1: What phase of mining generally causes the
Q3: Air and water pollution are only of
Q4: If surface mines tend to cause greater
Q5: The difference between a resource and a
Q6: Most water pollution associated with mining operations
Q7: The element _ represents the greatest amount
Q8: One of the major environmental hazards of
Q9: _ is being used to reduce the
Q10: The social and environmental impacts of mining
Q11: The predominant mineral resources used by modern