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4 Written questions

3 Multiple choice questions

  1. is the process of passing water through a series or screens that allow the water through but not larger solid particles
  2. the addition of any substance that has a negitive effect on the water or any of the living things that depend on the water
  3. is a measurement of how acidic or basic it is on a scale of 0 - 14.

3 True/False questions

  1. Water qualityis a measurement of the substances in water besides water molecules.

          

  2. Sewageduring primary treatment deposits of fine solids settle out from the wastewater

          

  3. point sourcea widely spred source of pollution that tat cant be tied t a specific point