Across
- 5. Harmful or poisonous to living organisms.
- 7. A colorless, transparent,liquid that forms the seas, rivers, and rain
- 10. type of air we breath out
- 11. grew naturally without chemicals
- 12. bees help pollinate ......
- 13. energy from the sun
- 16. clearance or destruction of a forrest
- 17. Earth is one of the 8 planets in our our solar system
- 19. Unwanted or unusable materials produced by human activity.
- 20. use an item agian for the same or diffrent purpose
Down
- 1. the total amount of greenhouse gases (including carbon dioxide and methane) that are generated by our actions
- 2. the contamination of harmful materials into the environment.
- 3. long-term change in earth's temperature and typical weather patterns
- 4. designed to be thrown away after us
- 6. A hard, brittle material commonly used for containers and windows.
- 8. capable of being decomposed by bacteria or other living organisms and thereby avoiding pollution.
- 9. diverse kinds of living things in a given area
- 14. Vast body of salt water covering most of earth's surface
- 15. An area with a large number of trees and diverse wildlife
- 18. The type of air we breath in.