Question

What is meant by a drainage basin ?

Answer 1

A drainage basin or catchment basin is an extent or an area of land where all surface water from rain, melting snow, or ice converges to a single point at a lower elevation, usually the exit of the basin, where the waters join another body of water, such as a river, lake, reservoir, estuary, wetland, sea, or ocean.

Answer 2

The area drained by a single river system is called a drainage basin.