Across
- 2. clouds that produce precipitation
- 8. 50-80 km above earth's surface; coldest layer thermosphere temperature increases with altitude;hottest layer
- 9. clouds form in flat layers when the air cools
- 10. starts at top of the troposphere to about 50 km
- 12. fog or haze combined with smoke and other pollutants
- 13. feathery or wispy clouds form in high altitudes
- 14. cyclonic storm with wind speeds of at least 72 mph
- 15. an instrument measuring atmospheric pressure
Down
- 1. an instrument used to measure humidity
- 3. cloud appears as puffy masses; look like cotton balls
- 4. lowest layer of the atmosphere
- 5. storm with thunder and lightning
- 6. absorbs ultraviolet rays
- 7. top of atmosphere; satellites orbit here
- 11. wind storm occurring over land