|
Across
| 3 | | These help air to circulate in
soil. (10) |
| 5 | | Layers in soil are called? (8) |
| 7 | | Layer of soil nearest surface. (7) |
| 8 | | Add this to soil to make it richer. (10) |
|
Down
| 1 | | Rock bottom. (7) |
| 2 | | When this happens, rocks or soil
are broken down and carried away. (7) |
| 4 | | A type of igneous rock. (7) |
| 6 | | Layer under topsoil. (7) |
|