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Mysteries Beneath Earth’s Surface
Explore intriguing subterranean phenomena, from hidden chambers to unusual underground life forms in this crossword puzzle.
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Across
  • 1. Horizontal passage leading into a mine
  • 2. Refers to heat originating from beneath the Earth's surface
  • 4. Deceptive tactic, metaphorically relates to underground secrets
  • 5. Large underground hollow spaces often formed by water erosion
  • 6. Underground layer that holds and transmits water
  • 10. Complex network of underground passages
  • 16. Small lump or mass, often mineral formed underground
  • 18. Small burrowing mammal known for its tunneling abilities
Down
  • 3. Flying mammals that often inhabit caves
  • 7. Man-made or natural passage underground
  • 8. Arched structure of rock underground
  • 9. Icicle-shaped mineral formation hanging from cave ceilings
  • 11. An animal adapted to live permanently in caves
  • 12. Narrow crack or opening in rock underground
  • 13. A subterranean snake that exhibits bioluminescence
  • 14. Naturally occurring substance found underground
  • 15. A depression or hole formed by collapse of surface land
  • 17. Layer of Earth between crust and core

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