The Atmosphere

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Across
  1. 3. height of an object above the earth's surface
  2. 4. gases in the atmosphere trap heat
  3. 7. precipitation that contains acid from air pollution
  4. 9. flow toward the poles opposite of the trade winds
  5. 11. made of three oxygen atoms and absorbs ultraviolet radiation
  6. 12. layer of atmosphere closest to earth
  7. 13. directly into the air by human or natural activity
  8. 15. transfer of heat by circulation of liquid or gas
  9. 17. wind belts from the poles to 60 latitude
  10. 20. coldest layer of the atmosphere
  11. 21. transfer of heat from one object to another by direct contact
  12. 22. narrow bands of high speed winds
Down
  1. 1. moving air
  2. 2. rise in average global temperatures
  3. 5. pollutants that form from chemical reactions
  4. 6. measure of force that air molecules push on a surface
  5. 8. mixture of gases that surrounds the earth
  6. 10. curving of moving objects by the Earth's rotation
  7. 14. layer of atmosphere containing the ozone
  8. 16. winds from 30 latitude to the equator
  9. 18. layer of atmosphere where temperatures can reach 1700 degrees Celsius
  10. 19. energy that is transferred as electromagnetic waves