Across
- 5. a unit that measures the intensity of sound.
- 7. avoiding waste through careful management of natural resources.
- 10. harmful, unwanted sound loud enough to damage hearing.
- 12. an overall increase in the earth's temperature.
- 13. waste materials with properties that make them dangerous to human health or the environment.
- 15. a brownish haze that sometimes forms in urban areas.
- 17. is the trapping of heat by gases in the earth's atmosphere.
- 19. used water from homes, communities, farms, and businesses.
- 20. an index for reporting daily air quality.
- 22. the processing of waste materials so that they can be used again.
Down
- 1. all medical care available to a nation's people.
- 2. destruction of forest.
- 3. complete and comprehensive information about your immunizations and any health problems you have had to date.
- 4. reducing waste before it is generated.
- 6. or able to be broken down by microorganisms in the environment.
- 8. all efforts to monitor, protect, and promote the health of the population as a whole.
- 9. a medical doctor who provides physical checkups and general care.
- 11. the contamination of the earth's atmosphere by harmful substances.
- 14. medical doctors who focus on particular kinds of patients or on particular medical conditions
- 16. private and government programs that pay for part or all of a person's medical costs.
- 18. specially engineered area where waste can be buried safely.
- 21. the spreading of city development onto undeveloped land.