Across
- 1. to use less of something
- 8. overall weather in a certain area for a long period of time
- 10. buses, trains, tramways
- 11. damage
- 12. to make a tree or a plant fall
- 13. to convert waste into a reusable material
Down
- 2. decayed organic material used as a fertilizer
- 3. energy collected from renewable resources (wind, sun, water)
- 4. to deplete something
- 5. contaminate with harmful substances
- 6. able to be maintained at a certain level
- 7. natural resources (coal, oil)
- 9. to put something in the trash