Across
- 5. The majority of underground mines in the US located near which mountain range?
- 9. When a mine is no longer being used and the land is returned to its original state or better is called?
- 10. coal Gob piles are large mounds of ________.
- 13. Mining that takes place below ground is ______ mining.
Down
- 1. Historically, most mining disasters are due to _________.
- 2. Fracking is used to obtain oil and _________.
- 3. Acid mine drainage causes ______ to be polluted.
- 4. Quarries, strip mines, and open-pits are all examples of ________ mines.
- 6. Mining can cause serious ______ concerns for the people that work or live near them, causing issues like black lung.
- 7. Mining injuries and fatalities have _________ over time.
- 8. Mining disasters have declined primarily because of better ________ regulations.
- 11. Fracking occurs in this type of rock layer
- 12. Mining is extracting ______ or minerals from the Earth.