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

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MCQs on Environmental Chemistry II Water Worksheets 9 Quiz PDF Download

MCQ: Third step of sewage water treatment is called

  1. Primary sewage treatment
  2. Secondary sewage treatment
  3. Activated sludge treatment
  4. Chlorination

C

MCQ: Water that gives little lather is called

  1. Hard water
  2. Soft water
  3. Dirty water
  4. Clean water

B

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

  1. One
  2. Two
  3. Three
  4. Four

C

MCQ: What is percentage of water from oceans?

  1. 0.001%
  2. 0.2%
  3. 0.6%
  4. 97.0%

D

MCQ: Hardness which can be removed by boiling is called

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

B