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4 Written questions

3 Multiple choice questions

  1. the addition of any substance that has a negitive effect on the water or any of the living things that depend on the water
  2. the aera around the septic tank that the water filters through
  3. a widely spred source of pollution that tat cant be tied t a specific point

3 True/False questions

  1. point sourcea specific source of pollution that can be identified


  2. Septic tankthat wastewater and the different kinds of wastes in it


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


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