Weather and Climate

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Across
  1. 2. state of athmosphere at some place and time
  2. 3. zone with average temperature above 18°C
  3. 6. which period has made human civilization's advancement possible
  4. 8. german scientist
  5. 12. what does climate encompass in terms of weather
  6. 14. zone with humid and warm summers
Down
  1. 1. study athmosphere
  2. 4. zone with extremely cold winters
  3. 5. what are scientists doing with the climate
  4. 7. zone with warm summers and mild winters
  5. 9. several of which periods has earth experienced
  6. 10. zone with evaporation exceeding precipitation
  7. 11. number of main climate types
  8. 13. the average of weather elements