chemicals products often used in agriculture are dangerous for the environement

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Across
  1. 4. keep safe
  2. 9. protection of fauna and flora
  3. 11. substanceartificially prepared
  4. 14. chimicals to kill parasites
  5. 17. a catastrophic event
  6. 19. harmful effects of human activity
Down
  1. 1. defile or corrupt.
  2. 2. act to preserve
  3. 3. period of abnormally low rainfall
  4. 5. cause to be vulnerable
  5. 6. derived from living matter.
  6. 7. the plants of a particular region
  7. 8. decompose over time
  8. 10. energy that does not pollute
  9. 12. look closely at or examine
  10. 13. physical harm
  11. 15. who pollute
  12. 16. the animals of a particular region
  13. 18. able to defend throught the time
  14. 20. the natural world