UPSC CSE Prelims 2015
(D) Namdapha National Park, situated in Arunachal Pradesh, exhibits a unique climatic range due to its vast altitudinal variation. Spanning elevations from approximately 200 meters to over 4,500 meters, the park encompasses diverse climatic zones. These include tropical and subtropical climates in the lower valleys, temperate conditions at mid-altitudes, and alpine to arctic climates in its higher reaches. This extensive altitudinal gradient supports exceptional biodiversity and accounts for the presence of all four major climatic types within a single protected area.