Watershed.
drainage basin
Technically, a watershed is the dividing ridge between two catchments. A Catchment is the area of land with a common drainage system.
The catchment is the correct answer. Commonly folk say 'watershed' but the watershed is the boundary (ridges etc) of the catchment.
the main river and all of its tributaries are called a river system. The land drained by the river system is called a drainage basin. Drainage basins are separated by the high land in between, known as a divide or watershed.
a watershed, also called a drainage basin, is an area drained by a river.
A drainage map shows the watershed of an area, the direction and elevation that water flows from into a stream, river, or lake.
narmada river
they are still building a drainage system
The drainage system of harappan civilization was very well civilized system
Every river is part of a larger river system which includes the river and any tributaries that branch off of it.
A drainage system that is additional to the normal one.
Yes,it does.The Indus Valley Civilisation drainage system is a roadside type of drainage.