Question

The elevated boundary line that separates the headstreams that are tributary to different river basins​

Answer 1

Answer:

Watersheds are small in area while the basins cover larger areas. River basins and watersheds are marked by unity. ... They are separated from each other through the Delhi ridge, the Aravalis and the Sahyadris (water divide is shown by a line in Figure 3.1).

Answer 2

A divide is the elevated boundary separating areas that are drained by different river systems. For this reason, the feature is often called a drainage divide. Water flowing on one side of a divide empties into one body of water, while water flowing on the other side empties into another.

                                                                                                 - Aman Jha