give reason ganga brahmaputra plains are densely populated Share with your friends Share 1 Jaya T. answered this Hi,You can find your answer in the following link:https://www.meritnation.com/ask-answer/question/how-is-ganga-brahmaputra-basin-helpful-to-us-please-answer/human-environment-interactions-the-tropical-and-the-subtropi/3693134 2 View Full Answer Rosy answered this The Ganga- Brahmaputra basin lies in the sub- tropical region of northern India sharing borders with Nepal. They live in the following conditions: Agriculture is the main activity as the region is well fed with perennial rivers and monsoon rainsSummers are hot and winters are coolThe plains in this regon are highly populated wheras the steep slopes are inhostipable. 0