Across
- 2. material from the earth that easily degrades
- 3. the by-product of composting
- 6. no oxygen
- 9. assorted organic material that is in the process of decay
Down
- 1. material that can degrade naturally
- 4. oxygen
- 5. organisms that break down organic material
- 7. dark brown, nutrient-rich soil
- 8. the gas which is emitted when food waste decomposes in landfills