| OILS | Lubricants found in the soil |
| TALC | Used in lubricants, found in the best alcoholic drinks (4) |
| EOLITH | Flint artefact? More than one may be found in the soil (6) |
| INTAGLIO | Up north, Mark returns lubricant found in gem design (8) |
| NUTRIENTS | Endogeic earthworms live within the soil forming tunnels 10cm to 30cm below the surface. They ingest soil so they can absorb ___ from degraded organic matter present in the soil. |
| LIANA | A woody vine found in tropical forests, rooted in the soil and climbs up around other plants to reach the canopy (5) |
| BIOLOGICAL | Earthworms cause physical, chemical and ___ changes to the soil, which affects the organisms present in the soil. |
| RECYCLE | They ___ dead plant material converting it to compost and improve the nutrient availability in the soil by pulling organic material deeper into the soil. |
| HUMUS | Pooh's work for the Guardian? The answer's in the soil (5) |
| COWSLIP | You see this plant growing all around in the soil by the waterfront on the outskirts of Port Issac (7) |
| EOLITHS | Pieces of flint found scattered in the soil |
| NOCTURNAL | Sleeps during the day, hidden in the soil |
| ROOTHOLD | The anchorage of a plant in the soil (8) |
| OILCAN | Supplier of lubricants dealing in coal (6) |
| SILICONE | Polymer used in lubricants |
| MUDS | Lubricants used in oil drilling |
| LOIS | The answer lies in the soil, according to Ms Lane (4) |
| EARTHWORM | Invertebrate which burrows in the soil and helps aerate and break up the ground (9) |
| HOLIEST | Most sacred elements? The answer lies in the soil (7) |
| TRACE | ____ element, a micronutrient in minute amount in the soil or food needed for growth (5) |