Question

Does a river basin mean the same as the mouth ofa river??
If not what is a river basin?

Answer 1

A river basin is the portion of land drained by a river and its tributaries. ... Whatever happens to surface or groundwater in one part of the river basin will find its way to other parts. If water is diverted out of its downward course in one section, other parts will come to “know” of its absence.

Answer 2

Hlo mate..

yes u r right.
A river basin is an area of land drained by a river and its tributaries...