1. Which sea does River Vistula empty into?   Baltic Sea   Black Sea   North Sea   Hint Half-n-half Clue   2. River Garrone empties into the _______.   English Channel   Atlantic Ocean   Bay of Biscay   Half-n-half Clue   3. Which sea does River Oder empty into?   Baltic Sea   Black Sea   North Sea   Half-n-half Clue   4. Which sea does River Don empty into?   North Sea   Caspian Sea   Sea of Azov   Half-n-half Clue   5. River Douro and River Tagus empty into the _______.   English Channel   Atlantic Ocean   Bay of Biscay   Half-n-half Clue   6. River Seine empties into the _______.   Atlantic Ocean   English Channel   Bay of Biscay   Half-n-half Clue   7. Which sea does River Rhine empty into?   Black Sea   North Sea   Baltic Sea   Half-n-half Clue