The most common symptom of PKD is high blood pressure. Other symptoms are: 1  Pain in the back and side. 2  Blood in the urine. 3  Frequent kidney infections.he most common symptom of PKD is high blood pressure. Other symptoms are: 1  Pain in the back and side. 2  Blood in the urine. 3  Frequent kidney infections.
The longest river of Europe is the River Volga. It flows primarily in a southerly direction through Russia into the Caspian Sea. The second longest is the Danube, flows west to east before entering the Black Sea.
Volga River Basin. Draining most of western Russian, the Volga is the largest river in Europe. From its source in the Valdai Hills north east of Moscow the river flows east and south east to the Caspian Sea. large number of tributaries make up the Volga river system the delta where the river enters the Caspian is composed of hundreds of channels and lies 28 m below sea level.