Correct Option
(d) Valley of Flowers National Park is situated in the Chamoli district of Uttarakhand. It lies entirely within the temperate alpine zone, with elevations ranging from approximately 3,200 to 6,675 meters above sea level. This national park is a UNESCO World Heritage Site, renowned for its alpine meadows and rich endemic flora, including species like the blue poppy and Brahma Kamal. The climatic conditions are predominantly alpine and sub-alpine, devoid of tropical influence. The park remains snow-covered for a significant part of the year, typically accessible only between June and October.
Incorrect Options
Manas National Park:
Located in Assam, Manas National Park falls within the tropical and subtropical moist broadleaf forest biome. It is characterized by its relatively low altitude in the Himalayan foothills, making it distinct from an alpine zone.
Namdapha National Park:
Situated in Arunachal Pradesh, Namdapha National Park exhibits a wide altitudinal range, from about 200 meters to over 4,500 meters. This extensive gradient encompasses tropical, temperate, and alpine climatic zones. However, it is not exclusively or completely within the alpine zone, as required by the question.
Neora Valley National Park:
Neora Valley National Park, located in West Bengal, features temperate forests at higher elevations. Nonetheless, its lower reaches include subtropical broadleaf forests. Therefore, it does not lie entirely within the alpine zone.