Explanations:The Brahmaputra River is one of the major rivers in northeastern India, originating in the Tibetan Plateau and flowing through the states of Arunachal Pradesh and Assam before entering Bangladesh. In Arunachal Pradesh, the Brahmaputra is known by the name Siang. This name change reflects the river's different identities as it flows through various regions and states.
The Brahmaputra River is a significant geographical feature in the region, playing a crucial role in the local ecosystem, agriculture, and economy. It is also an important cultural and religious symbol for the people living along its banks. The river's course through Arunachal Pradesh is marked by its transformation from a swift, mountainous river to a broader, more meandering waterway as it enters the plains of Assam.
Understanding the geographical names of rivers is essential for students of geography and those preparing for competitive examinations. The Brahmaputra, known as the Siang in Arunachal Pradesh, is a prime example of how a river can have different names in different regions. This is often due to local traditions, historical naming conventions, and the river's course through various cultural and political boundaries.
It is important to note that the Brahmaputra has several tributaries in Arunachal Pradesh, including the Dibang and Subansiri, which are distinct from the main river. These tributaries contribute to the Brahmaputra's volume and are significant in their own right, but they are not the main river itself. The Meghna, mentioned in one of the options, is a different river entirely, located in Bangladesh, and is not related to the Brahmaputra's course in Arunachal Pradesh.
Thus, the correct answer is that the Brahmaputra River in Arunachal Pradesh is known as the Siang. This knowledge is crucial for understanding the geographical and cultural context of the region and for correctly identifying the river's name in different parts of its course.