APES Unit 7 Crossword Puzzle

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Across
  1. 5. what is found in water and air purification
  2. 7. Amphibians such as frogs and toads
  3. 9. used in the production of nitric acid, lacquers, dyes, and other chemicals.
  4. 10. Agriculture, forestry, hydro magnification, marinas and boating, and resource extraction are all examples of:
Down
  1. 1. Particulates, carbon monoxide, nitrogen oxide, and sulfur oxide are examples of:
  2. 2. The buildup of the insecticide DDT in zooplankton
  3. 3. Smokestacks may spew carbon monoxide, heavy metal, sulfur dioxide, nitrogen dioxide, or “particulate matter” into the air.
  4. 4. ozone is an example of:
  5. 6. benzene, ethylene glycol, formaldehyde, methylene chloride, tetrachloroethylene, toluene, xylene, and 1,3-butadiene are examples of:
  6. 8. when warm air sits on top of cold air and trapping it