Nirdhar IAS
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https://telegram.me/NirdharIAS 04-01-2025 03:55:58
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#CSE2026 Subject - Environment Topic - Pollution Prelims - 1. Difference between primary and secondary pollutants. 2. Role of Ammonium Sulphate in PM2.5 Mains - 1. Flue gas desulphurisation (FGD) system Join Nirdhar IAS