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Class 7 Geography MCQs (Grade 7) From Textbook

Class 7 Geography MCQs – Certification Test 196

Air and Water Pollution Quiz (Question 196) – App & e-Book Download

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MCQ 196: The addition of harmful substances that has bad effects on environment and living things is classified as:

  1. allotrophication
  2. eutrophication
  3. atmospheric pressure
  4. pollution
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