| Across |
|---|
| 2. | Muddy water and vegetation are found here. |
| 4. | He managed the colliery. |
| 6. | A sandwich layer. |
| 8. | These keep the roof in place. |
| 9. | Big bang. |
|
| Down |
|---|
| 1. | These keep you safe from gas. |
| 3. | Wicker baskets |
| 5. | A layer of black rock. |
| 7. | This man works underground. |
|
|