| Answer | Crossword Clue |
|---|---|
| ODER | Second longest river in Poland |
| EBRO | Second-longest river in Iberia |
| CONGO | Second longest African river |
| HUANG | China's second-longest river |
| ODER | Poland's second-longest river |
| SEVERN | England's second-longest river |
| EBRO | Spain's second-longest river |
| CONGO | Africa's second-longest river |
| CONGO | Africa's second longest river. |
| ADIGE | Italy's second-longest river |
| DANUBE | Europe's second-longest river |
| ODER | Poland's second longest river |
| ODER | Second-longest Polish river |
| SPEY | Second longest Scottish river. |
| AMAZON | World's second-longest river |
| HUANG | Second-longest river of China |
