| Answer | Crossword Clue |
|---|---|
| palaeogeography | the study of the geography of geological periods |
| geographies | GEOGRAPHY, the study of the earth's physical and human features |
| hydrogeology | the study of the geological action of water |
| hydrogeologies | HYDROGEOLOGY, the study of the geological action of water |
| geomorphology | The study of the physical features of the surface of the earth and their relation to its geological structures |
| photogeology | a branch of geology concerned with the identification and study of geological features through the study of aerial or orbital photographs |
| photogeologies | PHOTOGEOLOGY, a branch of geology concerned with the identification and study of geological features through the study of aerial or orbital photographs |
