Across
- 3. recycle it then make it better
- 6. relating to or determined by the sun
- 8. something that is no longer in this world
- 9. able to be maintained at a certain rate
- 10. maintain or keep alive
- 12. something humans does that harms the environment Environment A type of place where organisms live
- 15. relating to a bodily organ or organs
- 16. community of interacting organisms
- 18. a colorless unstable toxic gas with an odor
- 19. A place where plants and animal live
- 20. something that we use to survive
Down
- 1. contaminate with harmful or substances
- 2. something that we can reuse
- 4. prevent the wasteful or overuse
- 5. it has something to so with reusing things
- 7. waste material used to reclaim ground
- 11. it is an organism's relation to other organisms organism an individual animal, and plant
- 13. the production and discharge of something
- 14. decayed organic material used as a plant fertilizer a chemical substance added to soil or land
- 17. The layer that grass and rocks are