| Answer | Crossword Clue |
|---|---|
| up | om beneath the ground or water to the surface |
| subirrigations | to irrigate beneath the surface of the ground, as with water passing through a system of underground porous pipes or transmitted through the subsoil from ditches, etc. |
| surfaced | Rise or come up to the surface of the water or the ground |
| taxied | to go at low speed along the surface of the ground or water |
| surfacing | Rise or come up to the surface of the water or the ground |
| substrata | An underlying layer or substance, in particular, a layer of rock or soil beneath the surface of the ground |
