Watershed definition pls

1.
an area or ridge of land that separates waters flowing to different rivers, basins, or seas.

2. an event or period marking a turning point in a course of action or state of affairs.

3.
Accordingly, “watershed is defined as any surface area from which runoff resulting from rainfall is collected and drained through a common point. It is synonymous with a drainage basin or catchment area. A watershed may be only a few hectares as in small ponds or hundreds of square kilometres as in

I hope this helped :)