Mapping Earth's Surface

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Across
  1. 2. straight
  2. 6. shape
  3. 7. height
  4. 10. difference
  5. 13. process
  6. 16. line
  7. 18. framework
  8. 19. sphere
Down
  1. 1. curved
  2. 3. shapes
  3. 4. change
  4. 5. distance
  5. 8. circle
  6. 9. feature
  7. 11. darker
  8. 12. line
  9. 14. imaginary
  10. 15. distance
  11. 17. degrees
  12. 18. model