module 2 vocabulary puzzle

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Across
  1. 3. Tectonics
  2. 5. Plates
  3. 6. dating
  4. 8. Wave
  5. 9. Boundary
  6. 10. dating
Down
  1. 1. age
  2. 2. Boundary
  3. 4. Boundary
  4. 7. decay