Across
- 3. Cutting trees
- 4. Warming gas
- 5. Air energy
- 7. Animal life
- 8. Sun energy
- 10. Animal home
- 13. Loud sound pollution
Down
- 1. Grow trees
- 2. Make food using sunlight
- 4. Fossil fuel
- 5. Water contamination
- 6. Rising temperature
- 9. UV protection layer
- 11. Main air gas
- 12. Use again
