In Terms of Geology

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Across
  1. 2. Has unlimited supply/easily replenished
  2. 5. Upper mantle/crust that moves with tec.plates
  3. 7. Earth's solid, outermost layer (3-56 mi. deep)
  4. 9. Boundary between Earth's crust and mantle
  5. 11. Region in which the Earth orbits
  6. 12. Dense, extremely hot interior of Earth (2900mi.deep)
  7. 13. False, fundamental principle of geology
  8. 14. Hot, plastic rock/between crust and core (1800mi.)
  9. 15. Raw material from Earth that we use
  10. 16. Low-frequency/inaudible wave moving thru/Eart
  11. 17. The study of Earth's structures, materials, etc.
Down
  1. 1. Effort to oversee/wisely use resources
  2. 3. The "Father of Geology"
  3. 4. Can't be replenished once used up
  4. 6. Upper mantle (125 mi. deep)
  5. 8. First published view of "Uniformitarianism"
  6. 10. Idea that earth is ancient, billions/yrs.old