Importance of Water Learning App | Class 7 Science MCQs e-Book PDF

Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science MCQs – Practice Test 9 (Chapter 13)

Importance of Water MCQs with Answers PDF Download – Test 9

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Study Importance of water Multiple Choice Questions (MCQs) with Answers PDF (Importance of Water MCQs PDF e-Book) download Ch. 13-9 to study Class 7 Science Course. Learn Importance of Water Quiz Questions and Answers to improve exam scores. Free Importance of Water MCQs App: Download the Class 7 Science Learning App to distillation, saving water, sewage system, water treatment test prep to perform experiments digitally.

Free "Importance of Water MCQs" App Download with MCQ: For desalination plant, the first priority is; with answers: reserves of water, reserves of natural gas, reserves of oil, and reserves of coal to improve exam scores. Solve Distillation MCQ Questions, download Google e-Book (Free Chapter) to strengthen revision techniques.

Importance of Water MCQs – Practice Test 9 PDF Download

MCQ 41: For desalination plant, the first priority is:

  1. reserves of natural gas
  2. reserves of water
  3. reserves of oil
  4. reserves of coal

MCQ 42: Whether we obtain tap water or water from well, it originally comes from:

  1. sea
  2. ocean
  3. river
  4. rain

MCQ 43: For drinking, distilled water is:

  1. suitable
  2. not suitable
  3. poisonous
  4. not preferable

MCQ 44: In country area, untreated sewage is pumped into tanks known as:

  1. septic tanks
  2. sewage tanks
  3. grit tanks
  4. sludge tanks

MCQ 45: The removal of particles settled at the bottom of a tank is called:

  1. coagulation
  2. sedimentation
  3. filtration
  4. chlorination

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