What is meant by a water divide? Give an example.

A water divide, also known as a watershed or drainage divide, is an elevated boundary separating two adjacent river systems or drainage basins. It determines the direction of water flow—rainfall or runoff on one side flows into a specific river system, while precipitation on the other side drains into a different river system. For instance, the Western Ghats in India serve as a water divide. Rivers originating from its western slopes, like the Godavari, Krishna, and Kaveri, flow eastwards into the Bay of Bengal, while those from the eastern slopes, such as the Narmada and Tapti, flow westwards into the Arabian Sea.