earths layers

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Across
  1. 4. the 7 layer of earth
  2. 6. the 10 layer of earth
  3. 7. the 8 layer of earth
  4. 8. the 15 layer of earth
  5. 9. the 13 layer of earth
  6. 13. the 6 layer of earth
  7. 15. the 1 layer of earth
Down
  1. 1. the 3 layer of earth
  2. 2. the 12 layer of earth
  3. 3. the 4 layer of earth
  4. 5. the 2 layer of earth
  5. 10. the 5 layer of earth
  6. 11. the 14 layer of earth
  7. 12. the 9 layer of earth
  8. 14. the 11 layer of earth