Across
- 1. Presence of substances in the air that are harmful to humans, other living beings or the environment
- 7. Surface sinking when mining tunnels underground collapse
- 9. Practice of separating heavily eroded minerals like gold from sand or gravel
- 12. A surface mining method that creates large, terraced holes (pits) in the ground to extract minerals or ore
- 13. Commercially valuable deposits of minerals or metal that is harvested
- 14. Used to remove ore located less than 50 meters down. Involves removal of overburden (rocks, grass, etc) to access ore near surface
- 15. Process of restoring land to original state after mining has finished
Down
- 2. Soil, plants, & rocks that are removed to get to an ore deposit below
- 3. Contain valuable minerals that accumulate in an area due to gravity, water, etc
- 4. Sand, gravel, gypsum, crushed rock, etc used for construction purposes
- 5. The outflow of acidic water from metal and coal mines, formed when sulfide minerals like pyrite and marcasite are exposed to oxidizing conditions, resulting in sulfate-rich and metal-laden drainage
- 6. Used to remove ore located deeper than 50 meters down. Involving the extraction of minerals, ores, or fossil fuels from deep below the Earth’s surface
- 8. Considered to be any unwanted or disturbing sound that affects the health and well-being of humans and other organisms
- 10. Leftover waste material separated from the valuable metal or mineral within ore (often stored in tailing ponds at the mine site)
- 11. A type of open pit mine used to mine aggregates