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प्रश्न
Why do cities with a lot of smoke and dust in the air often look hazy?
लघु उत्तरीय
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उत्तर
Smoke and dust particles present in the air behave as colloidal or suspended particles. These particles scatter the light that passes through them. This scattering of light, known as the Tyndall effect, makes the air appear hazy in cities with high levels of smoke and dust.
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