Environmental Health

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Across
  1. 3. The spreading of city development onto undeveloped land
  2. 6. A fibrous mineral that has fireproof properties
  3. 7. An odorless, radioactive gas, that causes at least 14,000 lung cancer deaths per year
  4. 9. Able to be broken down by microorganisms in the environment
  5. 10. An area that has been safeguarded to prevent disposed wastes from contaminating groundwater
  6. 12. The contamination of the Earth's atmosphere by substances that pose a health threat to living things
  7. 13. A unit used to express the relative intensity of loudness of sound
Down
  1. 1. Reducing waste before it is generated
  2. 2. Harmful and unwanted sound of sufficient intensity to damage hearing
  3. 4. The protection and preservation of the environment by managing natural resources to prevent abuse, destruction, and neglect
  4. 5. The processing of waste materials so that they can be used again
  5. 8. An index for reporting daily air quality
  6. 11. Used water that comes from homes, businesses, communities, and farms