hanging tributary meaning in Hindi

In both parks, smaller streams flow over waterfalls before they join the main river, phenomenon known as hanging tributaries.
Along much of its course, tributaries entering the Kankakee enter over waterfalls, a phenomenon known as " hanging tributaries ".
Not only is the Maligne Valley a U-shaped valley, but it is also a hanging tributary valley as a result of deepening or widening of the Athabasca Valley by glacial erosion at a faster rate than the tributary Maligne Valley.