In which state is the Nanda Devi Biosphere Reserve located?

The correct answer is Uttarakhand.

Explanation:

The Nanda Devi Biosphere Reserve is located in the northern state of Uttarakhand, India. It surrounds the Nanda Devi peak (7,816 m), which is the second-highest mountain peak in India.

Key Facts:

1. It encompasses both the Nanda Devi National Park and the Valley of Flowers National Park, both of which are UNESCO World Heritage Sites.

2. The reserve was established in 1988 and is home to several rare and endangered animal species, including the snow leopard, Himalayan musk deer, and blue sheep.