An area of land that drains to one river (or a river and its tributaries) is a drainage basin or watershed.
an area drained by a river is called pooo lol
Land drained by a river is a watershed. This is an area of land that feeds all the water running under it and draining off of it into a body of water.
river basin
a watershed, also called a drainage basin, is an area drained by a river.
A river basin is an area of land drained by a river and its tributaries.
An area drained by a river or river system is called a drainage basin.
The area of land drained by a river is called a "catchment area". It is so-called because is the the area that catches the precipitation (rainfall).Another term is "river basin", but this is less specific.(The geographical term, "catchment area", is often used to describe the area served by, say, a school or hospital).
A Basin
No, the area drained by a river is a river basin or drainage basin. The flood plain is in the lower valley reaches, where heavy rain can cause the river to flood, often bursting over flood defences, and for the water to flood over a large area.
basin
an area drained by the river .
that is what is called a basin