photochemical smog – Meaning and Explanation

Part of speech : Noun

Urdu Meaning (اردو معنی)

سورج کی روشنی کے گرد و غبار پر اثر انداز ہونے سے پیدا ہونے والی دُھند اور اوزون نائٹروجن آکسائیڈ کی مقدار کی سطح میں اضافہ ۔

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