The correct answer is: C. 1990
Vikramshila Gangetic Dolphin Sanctuary is a protected area for the endangered Ganges river dolphin. It is located in the Bhagalpur district of Bihar, India. The sanctuary was established in 1990 and covers an area of 1,000 square kilometers. The main objective of the sanctuary is to protect the Ganges river dolphin and its habitat. The sanctuary is home to a large population of Ganges river dolphins, as well as other aquatic animals such as turtles, crocodiles, and fish. The sanctuary is also home to a variety of plant life, including mangrove forests, grasslands, and forests.
The Ganges river dolphin is a freshwater dolphin that is found in the Ganges, Brahmaputra, and Meghna rivers in India, Bangladesh, and Nepal. The Ganges river dolphin is one of the most endangered dolphins in the world. The main threats to the Ganges river dolphin are habitat loss, pollution, and overfishing.
The Vikramshila Gangetic Dolphin Sanctuary is an important conservation effort to protect the Ganges river dolphin and its habitat. The sanctuary provides a safe haven for the dolphins and helps to reduce the threats to their survival. The sanctuary also provides a valuable opportunity for research and education about the Ganges river dolphin.
Here is a brief explanation of each option:
- Option A: 1978. This is the year that the Sundarbans National Park was established. The Sundarbans National Park is a protected area in Bangladesh that is home to a large population of Ganges river dolphins.
- Option B: 1976. This is the year that the Kaziranga National Park was established. The Kaziranga National Park is a protected area in India that is home to a large population of rhinoceroses.
- Option C: 1990. This is the correct answer. The Vikramshila Gangetic Dolphin Sanctuary was established in 1990.
- Option D: 1999. This is the year that the Manas National Park was established. The Manas National Park is a protected area in India that is home to a large population of tigers.