Multiple Choice Questions and Answers on Environmental Chemistry II Water Quiz 9 Download PDF

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"The third step of sewage water treatment is called" Multiple Choice Questions (MCQ) on environmental chemistry ii water with choices secondary sewage treatment, primary sewage treatment, activated sludge treatment, and chlorination for distance learning. Free chemistry study guide for online learning waterborne diseases quiz questions for online education programs.

Environmental Chemistry II Water MCQs Quiz 9 Download PDF

MCQ: The third step of sewage water treatment is called

  1. primary sewage treatment
  2. secondary sewage treatment
  3. activated sludge treatment
  4. chlorination


MCQ: Water that gives little lather is called

  1. hard water
  2. soft water
  3. dirty water
  4. clean water


MCQ: Water exists in how many different states on Earth?

  1. one
  2. two
  3. three
  4. four


MCQ: What is the percentage of water from oceans?

  1. 0
  2. 0.002
  3. 0.006
  4. 0.97


MCQ: The hardness which can be removed by boiling is called

  1. permanent hardness
  2. temporary hardness
  3. stiffness
  4. toughness