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What is photochemical smog?

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प्रश्न

What is photochemical smog?

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उत्तर

Photochemical smog is a secondary pollutant formed in traffic-congested metropolitan cities by the action of sunlight on automobile exhaust gases.

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पाठ 20: Environmental Issues - EXERCISES [पृष्ठ ११६१]

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सरिता अग्रवाल Biology [English] Class 12 ISC
पाठ 20 Environmental Issues
EXERCISES | Q III. 2. (i) | पृष्ठ ११६१
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