Which of the following international rivers is the longest in Europe and discharges its waters into the Caspian Sea?

💡 Solution & Explanation

The Volga River is the longest river in Europe, flowing through central Russia and emptying into the landlocked Caspian Sea via a vast delta. Alternative major rivers like the Danube drain eastward into the Black Sea, whereas the Rhine flows north into the North Sea. The Volga basin constitutes a vital commercial navigation highway and economic corridor for the Russian Federation.