Which major river is formed by the confluence of three headstreams: Dihang, Dibang, and Lohit?

Barak
Dhansiri
Brahmaputra
Manas

The correct answer is c) Brahmaputra.

The Brahmaputra is a major river in Asia which flows through China, India, and Bangladesh. It is the ninth longest river in the world, with a length of 2,900 kilometers (1,800 mi). The Brahmaputra is formed by the confluence of the Dihang, Dibang, and Lohit rivers in the Himalayas. The river then flows eastward through India and Bangladesh, where it empties into the Bay of Bengal.

The Brahmaputra is a major source of water for irrigation and drinking water in the region. It is also a major transportation route. The river is home to a variety of fish and other aquatic life.

The Brahmaputra is a major river in Asia and is an important source of water and transportation for the region. It is also home to a variety of fish and other aquatic life.

The other options are incorrect because:

  • Barak is a river in India that flows through the states of Assam and Meghalaya. It is a tributary of the Brahmaputra.
  • Dhansiri is a river in India that flows through the states of Assam and Nagaland. It is a tributary of the Brahmaputra.
  • Manas is a river in India that flows through the states of Assam and Bhutan. It is a tributary of the Brahmaputra.