| Answer | Crossword Clue |
|---|---|
| SAAR | Coal center in Europe. |
| SAAR | Coal-rich area in Europe |
| MILAN | Opera center in Europe. |
| MILAN | Musical center in Europe. |
| MONS | City in Belgium coal-mining center. |
| SAAR | Coal region of Europe. |
| SILESIA | Coal region of central Europe |
| SILESIA | Coal-rich region of Europe |
| SILESIA | Coal-rich region of central Europe |
| SAAR | Third greatest coal region of Europe. |
