Weather

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Across
  1. 3. a large volume of air in the earths atmosphere
  2. 4. Fog or haze combined with smoke and other particles
  3. 5. a shell of electrons
  4. 12. above the stratosphere
  5. 13. a form of oxygen in the upper atmosphere
  6. 14. Temperature increases with altitude
  7. 15. a tracking system
Down
  1. 1. often cause steady precipitation
  2. 2. an instrument measuring atmospheric pressure
  3. 6. instrument measuring atmospheric pressure
  4. 7. Lowest layer in the atmosphere
  5. 8. top of the atmosphere
  6. 9. measure of hotness or coldness
  7. 10. often cause heavy precipitation/thunderstorms
  8. 11. the force exerted onto a surface by the weight of air