Across
- 3. Any form of water falling from the sky
- 4. Long-term weather patterns
- 8. Instrument measuring air pressure
- 9. Rotating storm system
- 13. Traps heat in the atmosphere
- 14. Overflow of water onto land
- 16. Layer of gases surrounding Earth
- 18. Release of gases into the air
- 20. Violent rotating column of air
- 21. Powerful tropical cyclone
Down
- 1. Large mass of ice
- 2. Able to be maintained at a certain rate
- 5. Chemical element essential to life
- 6. Process waste materials for reuse
- 7. Prolonged period of low rainfall
- 10. Contamination of the environment
- 11. Gas layer protecting Earth from UV rays
- 12. Amount of moisture in the air
- 15. Seasonal wind with heavy rain
- 17. Measure of hotness or coldness
- 19. Prediction of future weather
- 22. Power derived from physical resources