banks
tributary is the collective term A tributary is a smaller stream which flows into a larger river. The name of an individual stream depends on the size of the stream. It may be a river or a creek or a canal if it is manmade.
A tributary.
A tributary.
Creek
It is a tributary.
Small river.
A tributary
The smaller river is a tributary to the big one.
The fertile flat land in the lower course that surrounds a meander is called a floodplain. This flat area is ideal for agriculture due to the rich sediment deposits left by the meandering river.
Stream isn't it suppose to be Creeck
A waterfall.
It's called a tributary.