Question

Why does the brahmaputra in its tibetan part have less silt despite a longer caurse?

Answer 1

due to less rainfall in tibet

Answer 2

★$\large\bf\pink{Explanation✓}$

In Tibet, the river carries a smaller volume of water and less silt, as it is a cold and dry area. In India, it passes through a region of high rainfall. Hence, the river carries a large volume of water and a considerable amount of silt.