Across
- 3. Clearing of a wide range of trees
- 4. Broken down in separate areas
- 7. Natural home or environment
- 9. Variety of life and animals in an area
- 12. Livestock waste
- 13. Absence of oxygen
- 14. Group of living organisms
- 17. Able to be maintained
- 18. No longer exists
- 19. State of the atmosphere
Down
- 1. Weather conditions prevailing in an area
- 2. Habitat that surrounds us
- 5. Organism that can cause disease or fermentation
- 6. Algae Bloom
- 8. Spreading quickly and undesirably
- 10. Soil chemical
- 11. Inhabitants of a particular space
- 15. Harmful effects on air and land
- 16. Not useful
- 20. Community of organisms