Forming Nouns.

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Across
  1. 2. The noun from to endure.
  2. 5. The noun from secure.
  3. 7. The noun from tp deforest.
  4. 10. The noun from relation
  5. 11. The noun from sustainable.
  6. 12. The noun from to develop.
  7. 14. The noun from to dominate.
  8. 18. The noun from to diminish.
  9. 19. The noun from to protect.
  10. 20. The noun from to contaminate.
Down
  1. 1. The noun from ill.
  2. 3. The noun from different.
  3. 4. The noun from to pollute.
  4. 6. The noun from to evaporate.
  5. 8. The noun from partner.
  6. 9. The noun from to disturb.
  7. 13. The noun from leader.
  8. 15. The noun from productive.
  9. 16. The noun from essential.
  10. 17. The noun from Safe.