science

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Across
  1. 5. a change in air pressure
  2. 6. removes pollutants in atmosphere
  3. 9. layer above troposphere
  4. 10. winds blowing east to west over equator
  5. 14. family of chemical compounds
  6. 15. pollutant in the trophosphere
  7. 17. lowest layer of atmosphere
  8. 19. measurement of distance from equated
Down
  1. 1. increase in earths surface temp
  2. 2. measurement of ozone in atmosphere
  3. 3. formed millions of years ago
  4. 4. most direct climate zone
  5. 7. combine climate change process
  6. 8. ice sheets and glaciers hold clues
  7. 11. dark spot on sun
  8. 12. scientist and gov that study climate
  9. 13. describes surface characteristics in area
  10. 14. protects air quality
  11. 16. thin layer of gases surrounding earth
  12. 18. top layer of atmosphere