Gold mining Quiz: questions and answers
Right answers
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1. Which country is the largest gold producer?
China
2. Where were the first gold artifacts found?
Bulgaria
3. What is the weight of the world's largest gold bar?
250 kg
4. Which is mostly a manual technique of separating gold from other materials?
Panning
5. Which technique is used for small-scale mining?
Sluicing
6. What is used for extracting gold from the leach solution?
Carbon
7. When was the large-scale use of mercury stopped in gold mining?
1960
8. One study found that gold mine workers noise exposures ranged:
165-261% of the MSHA PEL
9. Which is the world’s highest producing gold mine?
Grasberg Mine
10. Where is Karnataka located?
India