Choose the correct sequence of air pollution and its components with the effect it produces

Options

(a) chemical factory → NO₂ → ozone hole
(b) automobile exhaust → N₂O → green house effect
(c) heavy industry → CO₂ → acid rain
(d) knox gases → PAN → photochemical smog

Correct Answer:

knox gases → PAN → photochemical smog

Explanation:

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