Across
- 2. a precipitation falling from the sky like an ice surface
- 5. a storm caused by a circulating current of rising and falling winds in a low pressure zone
- 9. what is a strong wind?
- 10. a numerical measure of hot and cold
- 11. deforestation is result of...
- 13. the changing temperature, rainfall, and wind over a long time which causes drought or flooding
- 17. orign of the electric charge that accumates in the atmosphere
- 18. the cutting, clearing, removing of forest for farming or building
- 19. a pleasant, inviting, wind
- 20. tropical rains wash away...
Down
- 1. Wet, partly melted falling snow
- 3. a gradual rising of earth's temperature caused by greenhouse effect
- 4. warming of earth's surface and the air above it
- 6. when the soil is over used
- 7. the damage to soil, water, or air by harmful substances such as bacteria, chemicals and waste
- 8. light rain that has very small, even drops
- 12. warming of earth's surface and the air above it
- 14. rain containing acids that form in the atmosphere when industrial gas emissions combine with water
- 15. North and South poles'ice is melting because of...
- 16. ...makes the earth warmer