Human Activities and Ecosystem Learning App | Class 8 Science Quiz e-Book PDF
Class 8 Science MCQs (Grade 8) From Textbook

Class 8 Science MCQs – Certification Test 28

Human Activities and Ecosystem Quiz (Question 28) – Learning App & e-Book Download

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MCQ 28: Smoke particles and harmful gases released in air produces a:

  1. smoke
  2. haze
  3. fog
  4. smog
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Human Activities and Ecosystem Quiz App & e-Book – Class 8 Science Exam Prep

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