Across
- 3. Clearing of forests
- 7. Gradual wearing away of soil
- 10. Replanting of forests
- 13. Resources that can be replenished
- 14. Study of organisms and their environment
- 15. Natural home of an organism
Down
- 1. Ancient organic remains
- 2. Long-term weather patterns
- 4. Decomposed organic material
- 5. Disappearance of a species
- 6. Meeting needs without harming future
- 8. 22nd April
- 9. Variety of life in an ecosystem
- 11. Contamination of the environment
- 12. Process of reusing materials