Across
- 4. caused by lack of food
- 7. damage cased to air, water, etc. by harmful substances
- 9. a huge snow storm
- 10. a violent storm with strong wind
- 11. carbon dioxide
Down
- 1. a huge wave
- 2. a strong movement of the Earth's surface
- 3. the cutting down of trees in a large area
- 5. hard black substance, used as fuel
- 6. caused by lack of rain
- 7. a disease spread over a huge area
- 8. caused by heavy rains or melting snow