3 Review(s)

Environment & Ecology printed/photocopy (Yellow Book) notes from Vajiram & Ravi for the 2026 UPSC exam. Vajiram & Ravi for Environment and Ecology (since that material is copyrighted). Concepts like ecotone, ecological niche, biogeochemical and energy flow cycles Terrestrial and aquatic, food chains/webs, ecological pyramids, succession cyclesBegin with ecology and ecosystems, mastering cycles (carbon, nitrogen), food chains, energy pyramids, biomes. Solve recent Prelims/Mains environment-related questions. The Yellow Book’s layout is tailored for matching UPSC’s framing of factual and analytical questions.Convert each chapter into your 2‑page condensed sheet. Use bullet points, tables, mnemonics—retain only key facts and frameworks. Practice extensively through prelims MCQs and mains answer writing—this helps with contextual application rather than rote recall.