VFI. The green revolution. 15

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Across
  1. 2. Contaminated
  2. 4. Extremely harmful
  3. 5. Uneffected
  4. 7. Exhaust
  5. 10. Remove
  6. 13. Inevitably
  7. 14. Strain
  8. 15. Insoluble
  9. 16. Pristine
  10. 17. Vital
Down
  1. 1. Unspoiled
  2. 3. Omnipresent
  3. 6. Inexorably
  4. 7. Challenging
  5. 8. Unprecendented
  6. 9. Pervasive
  7. 11. Persistent
  8. 12. Eminent