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1. Which of these is NOT a primary pollutant? a) Carbon monoxide b) Carbon dioxide c) Ground level ozone d) Oxygen 2. What percentage of pollutants is gaseous in nature? a) 75% b) 80% c) 99.9% d) 90% 3. Which of the following is an inorganic pollutant? a) Carbon monoxide b) Carbonyl compounds c) Aromatic…

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