Please rephrase - the question is unclear.
The Vistula, which is the longest river in Poland
The Vistula(Wisla)is the longest rive in Poland at 1,047 km(678 miles)
The longest draining into the Caspian Sea is the Volga River, 3692 Kms
The world's longest river is the Nile at 6,693 km which runs into the Mediterranean Sea.
Oder river
The longest river in Africa is the Nile River and it empties into the Mediterranean Sea near Alexandria in Egypt
Barents Sea and White Sea
The Vistula
The second longest river in asia is the river danube, flows east to east before entering the black sea.
The Yangtze River, the longest river in Asia, empties into the East China Sea at Shanghai.
The longest body of water in the Middle East is the Red Sea.
The Nile is the longest river in the World 4135 miles and it flows into the Mediterranean Sea at Egypt