Question

What do you mean by drainage, drainage basin and water basin?

Answer 1

A drainage basin or catchment basinis 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

Answer:

drainage here is used for river flowing on the surface of earth. it tells how is river flowing on the surface of earth.

water divide : the high land that to adjoining drain basin.