Question

When precipitation falls onto land surfaces, it is either soaked into the ground or becomes runoff. Runoff is surface water that travels downhill and drains into streams and rivers.

The area of land where water is drained downhill into a body of water is known as a drainage basin, or _______.

Answer 1

Answer - Catchment Basin

Reason - Its called for catchment basin is what exactly what it sounds. Basically its an end point. In this case water is being catch at the end point of the river.

Answer 2

The word watershed is sometimes used interchangeably with drainage basin or catchment. Ridges and hills that separate two watersheds are called the drainage divide.