Week 12 Video Terms

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Across
  1. 5. different layers of sand for water purification
  2. 6. cloudiness of a fluid
  3. 7. process in which bacteria is removed from water using a filter
  4. 10. agency that is responsible for the protection of human health and the environment
  5. 11. remove solids from water
  6. 13. substances and organisms that negatively affect health
Down
  1. 1. types of drugs that are passed through humans and put back into our water
  2. 2. types of water held underground
  3. 3. adding chemicals compounds to get rid of bacteria, usually at the end of treatment process
  4. 4. process of collecting, transporting, and disposing of solid waste
  5. 8. place in niagara falls that is the site of an enormous environmental disaster
  6. 9. process where solids form larger clusters so they can be removed from water
  7. 12. last name of EPA administrator from 1973-1977