Across
- 3. – The zone of life on Earth
- 6. – Processing used materials into new products
- 8. – Disappearance of species
- 9. – Gas layer that protects Earth from UV rays
- 11. – Variety of living species in an area
- 12. – A community of living and non-living things
- 14. – Turning organic waste into manure
- 15. – Resource that can be naturally replaced
- 16. - Related to Animals
Down
- 1. – Planting new trees
- 2. – Cutting down trees on a large scale
- 4. – Related to water
- 5. – Contamination of the environment
- 7. - Long-term change in weather patterns
- 8. – Not harmful to the environment
- 10. – Protection of natural resources
- 13. – Using resources without harming the future