It is only logical that mountain ranges form natural watershed boundaries because water from rain and melting snow flow to the rivers.
Sources of Water for rivers.
- Rainfall and the resulting runoff.
- Water from natural ice.
Both of these come down from mountains and will be impacted by gravity to keep flowing downwards. This then forms or contributes to rivers and explains why mountains are generally next to watersheds.
Find out more on the effects of mountains and rivers at https://brainly.com/question/9606094.
