Mining Techniques - Australia

1. What is the predominant mining method used in Australia?
2. What is the name of the process where minerals are extracted from a series of benches or steps?
3. Which mining method involves the extraction of valuable minerals by digging from the surface downwards?
4. In Australia, what type of surface mining involves the removal of sand, clay or rock by a variety of processes including excavation, blasting, and erosion?
5. Which mining method relies on the use of gravity to separate lighter soil and rock from heavier gold particles?
6. What is the primary disadvantage of open cut mining from an environmental perspective?
7. What type of mining technique is usually used for Mining gold or other high-density minerals?
8. In Australia, what does the term 'brownfield exploration' mean in the mining industry?
9. Which mining method most often results in acid mine drainage, a serious environmental issue?
10. What surface mining technique involves drilling into Earth's surface, and then using high pressure to fracture the underlying rock?
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