Final answer:
The Po River flows down from the peaks of the Alps eastward to the Adriatic Sea.
Step-by-step explanation:
The river that flows down from the peaks of the Alps eastward to the Adriatic Sea is the Po River. It is the longest river in Italy and spans a length of approximately 405 miles (652 kilometers). The Po River originates in the Cottian Alps near the border of France and Italy, and it flows through several major cities, including Turin, Milan, and Venice, before reaching the Adriatic Sea.
Learn more about River geography