Concept:This question tests knowledge of important geographical landmarks in India. The Valley of Flowers is a UNESCO World Heritage Site known for its alpine meadows.
Explanation:The Valley of Flowers is located in the Chamoli and Pithoragarh districts of Uttarakhand.
It is a low-lying Himalayan valley with an alpine temperate climate.
This climate supports a wide variety of ornamental flowers, giving the valley its name.
The region became known to the world only in the 1930s, introduced by the British.
It is also home to wild animals like the Asiatic black bear and red fox.
Due to its high endemism, many species here are threatened by human activities.
The valley was declared a UNESCO World Heritage Site for its natural beauty and biodiversity.
Uttarakhand is a state in northern India, bordered by Himachal Pradesh and Tibet.
Answer:D. Uttarakhand