vacab words

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Across
  1. 6. a boundary between air masses that don't move possibly causing rain for several days
  2. 9. rain with a slightly lower PH than regular rain water.
  3. 12. uniform grayish clouds that often cover the entire sky.
  4. 13. a weather system that brings cloudiness and stormy weather
  5. 15. the lowest layer of earths atmosphere.
  6. 16. global winds that flow towards the equator
  7. 17. process by which in a fluid being heated
  8. 18. concentration of trade subtances such as carbon monoxide
  9. 19. winds that mostly effect the weather in the us and located between 30 and 60 degrees latitude
  10. 20. generally brings clear skies and clam air or gentel breeze
Down
  1. 1. a frequently windless area hear the equator
  2. 2. the change from a gas to a liquid
  3. 3. a mixture of gases that surrounds a planet or moon
  4. 4. dark low-level accompanied light to moderately falling precipitation
  5. 5. locates near the polors
  6. 7. the front of an advancing mass of warmer air
  7. 8. describing a warm moist air mass
  8. 10. a front where cold air moves in under a warmer air mass
  9. 11. the upper most layer of the atmosphere.
  10. 14. larger clouds that often produce thunderstorms