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4 Written Questions

3 Multiple Choice Questions

  1. is a measurement of how acidic or basic it is on a scale of 0 - 14.
  2. a specific source of pollution that can be identified
  3. is a measurement of the substances in water besides water molecules.

3 True/False Questions

  1. Sludgeduring primary treatment deposits of fine solids settle out from the wastewater

          

  2. Septic tankan underground tank containing bacteria that treat wastewater as it passes through

          

  3. Sewagethat wastewater and the different kinds of wastes in it

          

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