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प्रश्न
Define smog.
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उत्तर
- Smog is a combination of smoke and fog which form droplets that remain suspended in the air.
- Smog is a chemical mixture of gases that forms a brownish-yellow haze. It mainly consists of ground-level ozone, oxides of nitrogen, volatile organic compounds, SO2, acidic aerosols and some other gases.
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संबंधित प्रश्न
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