Across
- 3. ability to exist constantly
- 4. model of food chains linked together
- 6. condition of mother nature
- 8. related to,or caused by living organisms
- 9. a large body of water created
- 10. community of living organisms
- 13. drains water in a specific waterbody
- 14. all water on earth
- 17. to control or direct by a rule
- 19. scientifically classifying of something
- 20. everything around you
- 23. a substance harmful to plants
- 25. to keep alive or existence
Down
- 1. two or more are depending on eachother
- 2. a large community of common species
- 5. refers to the variety of life on Earth
- 7. chemical compounds to kill insects
- 11. waste water produced by a community
- 12. displacement of the upper layer of soil
- 15. harmful long term exposure to air
- 16. water going down land surface
- 18. breaking down minerals on earth
- 21. has elevated levels of hydrogen ions
- 22. movement of preventing extinction
- 24. chemical compounds to kill pests