| Answer | Crossword Clue |
|---|---|
| DELTAS | Formations at mouths |
| RIAS | Formations at the mouths of some streams |
| SASSES | Mouths off at |
| SWAMI | Mouths back at one teacher (5) |
| palaeocurrent | a current that existed at a particular stage in the geological development of the earth, as evinced by sedimentary rock formations |
| palaeocurrents | PALAEOCURRENT, a current that existed at a particular stage in the geological development of the earth, as evinced by sedimentary rock formations |
