Weather

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Across
  1. 2. A nautical unit of speed
  2. 4. air that flows in relation to the earth's surface
  3. 5. transient motion or trembling of earth's crust
  4. 7. process of converting liquid into vapor
  5. 8. instrument for measuring wind speed
  6. 10. the interval required for the earth to complete one revolution around the sun
  7. 11. the upper atmosphere as seen from the earth's surface
  8. 12. natural electric discharge in the atmosphere
Down
  1. 1. frozen precipitation
  2. 3. the degree of hotness or coldness of a body or environment
  3. 4. the state of atmosphere at a specific time and place with respect to its effect on life and human activities
  4. 6. the scince and study of the atmosphere and atmospheric phenomena
  5. 9. violent tropical storm
  6. 11. season of the year between winter and summer