Across
- 4. Radioactive decay is the emission of energy in the form of ionizing radiation
- 5. A biological community of interacting organisms and their physical enviroment
- 9. a natural fuel such as coal or gas, formed in the geological past from remains or living organisms
- 12. A compound or substance that has been purified or prepared
- 13. The soroundings or conditions in which a person, animal, or plant lives or opperates
- 16. Wasted or spoiled food and other from kitchen or household
- 17. Eliminated or discared as no longer useful or required after the completion of a process
- 18. very harmful and poisonous
- 19. A synthetic material that can be molded into a shape in a elastic form
Down
- 1. Causing or likely to cause harm
- 2. A substance or things that is harmful to the enviroment
- 3. The action or process of converting waste into a reusable material
- 6. waste water
- 7. A coloress,transparents,liquid that forms the seas,lakes,rivers,and rain
- 8. Putting an end to by damaging or attacking
- 10. A place to dispose of trash by burying it in soil
- 11. Trash such as paper,cans,and bottles that are left in public places
- 14. Leakage of petroleum onto the surface of a large body of water
- 15. Discarded matter