| Answer | Crossword Clue |
|---|---|
| OCEAN | Where an echograph is used |
| OCEAN | Where an echograph is used in measuring |
| ASEA | Where radar is used. |
| ANALOGY | Where "is to" is used |
| YAP | Island where stone money is used. |
| NILE | Where the shadoof is used for irrigation. |
| ACTS | Where the word "Christian" is first used in the Bible |
