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Why do the Danube River's right-bank tributaries supply much of its water?
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Danube River
The Danube River basin and its drainage network.
The right-bank tributaries of the Danube River supply a significant portion of its waterâup to two-thirds of the total river runoffâbecause they collect their waters from the Alps and other mountainous regions. These high-elevation areas serve as a major source for many of Europe's rivers, providing a consistent and substantial volume of water that feeds into the Danube's drainage network.12