What does the term 'smog' refer to?

Chemical Environmental Engineering MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Chemical Environmental Engineeringchemical-engineering › chemical-environmental-engineering-chemical-engineering
Published
11 Mar 2019
Last updated
28 May 2026

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Explanation

Smog is a phenomenon created when smoke combines with fog, resulting in a polluted atmospheric condition. It is not simply black smoke, nor is it solely liquid droplets or solid particles like fly ash.

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