Across
- 6. spread
- 7. living space for animals
- 9. overflow or overtide
- 12. oxygen producers
- 13. a substance that harms the earth
- 15. lessen an activity
- 17. Natural disaster
- 18. new purpose
- 19. re analyze
Down
- 1. transformation for the better
- 2. fix
- 3. dangerous conditions
- 4. layer of earth
- 5. 70 percent of our body
- 8. Non living things
- 10. fresh material from organisms
- 11. deny
- 14. living things
- 15. biome
- 16. landfills and rubbish