Class 7 Geography MCQs (Grade 7) From Textbook

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Class 7 Geography MCQs – Certification Test 10

Ensuring Water Supply MCQs (Question 10) – App & e-Book Download

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MCQ: 10

The purification and removal of bacteria, solid materials and other impurities from used water is classified as

  1. distillation
  2. cloud seeding
  3. reclamation
  4. membrane filtration

Ensuring Water Supply Textbook Tests – Class 7 Geography App & e-Book MCQs

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