Whats shaking? Rishi

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Across
  1. 3. extremely fragile
  2. 4. bellow the outer surface
  3. 7. when two tectonic plates move away
  4. 9. when two tectonic plates collide
  5. 11. distinct motion of two rock surfaces
  6. 13. core around the middle of the earth
  7. 14. the outer surface
  8. 15. causes rocks to fold or fracture
Down
  1. 1. core the middle of the Earth
  2. 2. the tectonic plates float on
  3. 5. Where the tectonic plates are
  4. 6. a caterpillar can _________
  5. 8. stress or pressure
  6. 10. I fell into a ______
  7. 12. to the capacity of a rock...