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Human Activities and Ecosystem App Download | Class 8 Science MCQs PDF e-Book

Class 8 Science Cerification Guide: Certification Test 166

Human Activities and Ecosystem MCQs App Download & e-Book - 166

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MCQ: 166

The harmful substances which damage the environment are called

  1. pollutants
  2. compounds
  3. gases
  4. waste material
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Human Activities and Ecosystem Cerification Guide: Class 8 Science App & eBook MCQs

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Human Activities and Ecosystem MCQs App (iOS & Android)

Human Activities and Ecosystem MCQs App

Human Activities and Ecosystem MCQs App (Android & iOS)

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Earth Science MCQs App

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7th Grade Science MCQs App

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