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Environment: what UPSC repeats, and what it has left.
Each topic is one list in three parts: asked again and again, asked once, and not asked yet. Every asked item opens its solved question.
Biosphere Reserves🔁 10 repeated · ✅ 9 once · 3 not yetRamsar Sites (Wetlands)🔁 10 repeated · ✅ 9 once · 14 not yetTiger and Elephant Reserves🔁 14 repeated · ✅ 11 once · 12 not yetEnvironmental Conventions and Summits🔁 15 repeated · ✅ 7 once · 7 not yetEcology Basics🔁 5 repeated · ✅ 10 once · 8 not yetPollution and Its Diseases🔁 6 repeated · ✅ 7 once · 13 not yetIUCN Red List and Threatened Species🔁 18 repeated · ✅ 2 once · 8 not yetGreenhouse Gases and the Ozone Layer🔁 8 repeated · ✅ 5 once · 7 not yetClean and Nuclear Energy🔁 4 repeated · ✅ 4 once · 17 not yetNational Parks and Sanctuaries🔁 9 repeated · ✅ 6 once · 5 not yet
The ideas UPSC returns to most ›
'Asked' is checked against the solved UPSC questions on this site. 'Not asked yet' does not mean it will surely come.