Class 10 Chemistry MCQ App Download | Air Pollution MCQ e-Book PDF
Class 10 Chemistry MCQs (Grade 10) From Textbook

Class 10 Chemistry MCQs – Certification Test 399

Air Pollution MCQ (Question 399) – App & e-Book Download

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MCQ 399: Ozone formation and destruction are powered by:

  1. oxygen gas
  2. atomic oxygen
  3. ultraviolet radiation
  4. chlorine gas

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