Q. Which of the following is the first UNESCO World Heritage Site in India that has been included in "mixed site" category?
Answer: Kanchenjunga Biosphere Reserve
Notes: The Kanchenjunga Biosphere Reserve in Sikkim is India's first UNESCO World Heritage Site in the mixed site category, part of the UNESCO Man and Biosphere Program. The Nilgiri Biosphere Reserve spans Tamil Nadu, Kerala, and Karnataka, also recognized as a UNESCO World Heritage Site under the same program. The Cold Desert Biosphere Reserve in Himachal Pradesh features a cold desert biome due to its leeward position relative to the Himalayas. The Pachmarhi Biosphere Reserve is situated in Madhya Pradesh on the Satpura Range.