Across
- 1. decayed organic material used as a fertilizer for growing plants
- 3. dealing with organisms & their physical surroundings
- 5. a material
- 6. decaying through the action of living organisms
- 8. effective way to prevent pollution
- 12. chemical-free
- 13. able to be maintained at a certain rate or level
- 14. kills all living creatures
Down
- 2. a superhero's job
- 4. a color
- 7. use again
- 8. in smaller amount
- 9. not harmful to the environment
- 10. your surrounding
- 11. trying on animals