Q. According to the "Drainage of Assam" document, which of the following characteristics distinguishes the North Bank tributaries of the Brahmaputra from the South Bank tributaries?
A. North Bank tributaries have flatter gradients and meandering channels.
B. North Bank tributaries have steep gradients, coarse sandy beds, and braided channels.
C. North Bank tributaries are deep with fine alluvial soil beds.
D. North Bank tributaries carry significantly less sediment load than South Bank tributaries.
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Answer: North Bank tributaries have steep gradients, coarse sandy beds, and braided channels.
Explanation: The North Bank tributaries are characterized by steep slopes, shallow braided channels, and coarse sandy beds, carrying a heavy silt load (3x that of the south bank). South bank tributaries have flatter gradients and meandering channels.