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89. Which of the following are primary pollutants? (1) Carbon monoxide (CO) (2) Sulphur oxides (SO2) (3) Volatile Organic Compounds (VOCs) (4) Nitric Oxide (NO) (5) CFC's (6) Radioactive pollutants Select the correct answer using the code given below
This question appeared in the OPSC Prelims 2023 examination (GS). It is Question 89 out of 174 questions in this paper.
This question was part of the OPSC Prelims 2023 (GS). The OPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all OPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.