The watershed for which river systems are the Ural Mountains? Should mountains always be the watershed?

The Ural Mountains are the watershed of the Volga and Kama rivers. On the plains, the watershed is not clearly expressed in relief and usually turns into a flat watershed area.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.