Earth's Atmospheric System

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Across
  1. 3. the ozone layer is in this atmospheric layer
  2. 4. humans experience this EM wave as heat
  3. 7. type of UV radiation that is partially blocked by the ozone layer and causes burning
  4. 8. EM wave with the lowest frequency
  5. 9. type of UV radiation that is not blocked by the ozone layer and causes aging
  6. 10. in all atmospheric layers, as altitude increases, air pressure ___________________
  7. 11. the distance between crests of an EM wave
  8. 15. CFCs were a non-toxic gas used in _________
  9. 16. all weather occurs in this atmospheric layer
  10. 18. biological process that releases oxygen into the atmosphere
  11. 19. A 1987 international agreement to stop the production of ozone-depleting substances
Down
  1. 1. One atom of ______ can destroy tens of thousands of ozone molecules
  2. 2. ozone molecules have _______ oxygen atoms
  3. 5. unit used to measure EM wavelengths; one billionth of a meter
  4. 6. UV light can enter skin cells and damage ____________
  5. 7. breaks apart oxygen molecules and recombines them to form ozone molecules
  6. 9. type of UV radiation that is completely blocked by the ozone layer and sterilizes bacteria
  7. 12. the smallest possible particle of EM energy
  8. 13. the number of EM wave crests that pass a given point within one second
  9. 14. Mexican chemist who was pivotal in the discovery of the ozone hole
  10. 17. oxygen molecules have _______ oxygen atoms