Across
- 3. lines that show areas of same presure
- 4. harmful substances in the air water or soil
- 7. dark clouds that clause rain
- 8. air mass on the water
- 10. move WtoE moist air
- 14. dry hot air mass
- 17. air mass near the equator
- 18. a wind that good to trade goods
- 19. measure the precipitation
- 20. larger body of air,forms over water or land
- 23. cold moist air mass
- 24. air mass near the poles
- 26. affect human health
- 27. is in the night and come from the land
- 28. heap or mass
- 29. very weak,dry air
- 30. current of air
Down
- 1. ballons float high in to troposphere
- 2. air mass on the land
- 5. is in the day, come from ocean
- 6. warm moist air mass
- 9. water vapor in the air
- 11. measure the cloud cover
- 12. dry cold air mass
- 13. no wind blows
- 15. spread out
- 16. cold wind, cold temperate
- 21. precipitation,high levels,sulfur,nitric acid
- 22. cause be fog and factory smoke mixing
- 25. wispy,feather cloud
- 26. how good or bad the air is