Across
- 5. matter in particulate form.
- 8. is a complex mixture of several pollutants.
- 9. are compounds of sulfur and oxygen molecules.
- 11. a community that requires collection and transport to a processing or disposal site
- 13. the destruction of something, especially waste material, by burning.
- 15. occurs when an excess of organic matter, such as manure or sewage, enters the water
- 16. is a colorless, odorless, and tasteless gas that is slightly less dense than air.
- 18. any technique or method of minimizing the input of energy to an overall system by the exchange of energy
- 19. any single identifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship or factory smokestack
- 22. Recoverable materials that are organic in nature, such as plant material, food scraps, and paper products, can be recovered through composting and digestion processes to decompose the organic matter.
- 23. a substance that pollutes something, especially water or the atmosphere.
- 24. inefficient cooking and heating practices produce high levels of household
- 26. is a type of radiation that is produced by the sun and some artificial sources, such as solariums.
- 28. are a group of gases that are composed of nitrogen and oxygen.
- 29. not essential minerals, or are toxic when in a certain form.
- 30. are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine.
Down
- 1. are not particularly toxic, but are still a danger to the environment because they are used so extensively.
- 2. It is the second layer of the atmosphere as you go upward.
- 3. is a site for the disposal of waste materials
- 4. is an inorganic molecule with the chemical formula O 3.
- 6. excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
- 7. is the process of converting waste materials into new materials and objects.
- 10. capable of floating; that can be floated.
- 12. are emitted directly into the air from sources.
- 14. form in the atmosphere through chemical and photochemical reactions from the primary pollutants
- 17. is a chemical compound with the chemical formula CHâ‚„.
- 20. is caused by rainfall or snowmelt moving over and through the ground.
- 21. refers to the use of source reduction and/or. environmentally sound recycling methods prior to energy recovery, treatment, or disposal of wastes.
- 25. carbon dioxide is that portion of carbon dioxide in the atmosphere that is produced directly by human activities
- 27. the release of radioactive substances or high-energy particles