1986
1988
1990
1992
Answer is Right!
Answer is Wrong!
The correct answer is (a). Nanda Devi National Park was declared a World Heritage Site by UNESCO in 1986. It is located in the Garhwal Himalayas in the Indian state of Uttarakhand. The park is home to a variety of plant and animal life, including the endangered snow leopard. It is also a popular destination for trekking and mountaineering.
Option (b) is incorrect because Nanda Devi National Park was not declared a World Heritage Site in 1988.
Option (c) is incorrect because Nanda Devi National Park was not declared a World Heritage Site in 1990.
Option (d) is incorrect because Nanda Devi National Park was not declared a World Heritage Site in 1992.