| Answer | Crossword Clue |
|---|---|
| PERMAFROST | Layer of soil that never thaws |
| pedocals | a soil that includes a definite hardened layer of accumulated carbonates |
| mors | forest humus that forms a layer of largely organic matter distinct from the mineral soil beneath |
| mor | forest humus that forms a layer of largely organic matter distinct from the mineral soil beneath |
| permafrost | A thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions |
