Respuesta :
The correct three water sources of a river system are rivers, streams, and watersheds.
What is a river system?
A river system is the pattern formed by the streams, rivers, and lakes in a particular drainage basin
Water sources of a river system
The water sources of a river system include the followings;
- Rivers,
- Streams,
- Watersheds
Thus, the correct three sources of a river system are rivers, streams, and watersheds.
Learn more about river systems here: https://brainly.com/question/719014