How is ozone harmful to us?

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Tags

  1. #vegetation
  2. #ozone
  3. #ultraviolet
  4. #upward
  5. #layer
  6. #breathe
  7. #about
  8. #damages
  9. #miles
  10. #crops
  11. #harmful
  12. #ground
  13. #stratosphere
  14. #extends
  15. #trees
  16. #pollutant
  17. #other
  18. #level
  19. #protects
  20. #earth