Which stage of river is common in Bhutan?Give reasons to support your answer.​

The largest river system in Bhutan, Drangme Chhu is the Bhutanese name for the holy Manas River. The 376 kilometres long river flows across Bhutan spanning 272 kilometres and covers the rest 104 kilometres by passing through the Indian state of Assam

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c-flooding of the area and the development of wetlands