Class 7 Science Learning App Download | Safe and Drinking Water MCQs e-Book PDF
Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science MCQs – Certification Test 1718

Safe and Drinking Water MCQs (Question 1718) – Learning App & e-Book Download

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MCQ 1718: Poisonous substances from landfills can be washed away into rivers by:

  1. flood
  2. rainwater
  3. underground river water

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