Class 7 Geography MCQs App (iOS & Android) – Ensuring Water Supply e-Book PDF

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

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