| Answer | Crossword Clue |
|---|---|
| MARIANAS | ... Trench (deepest point in earth's oceans) |
| MARIANAS | ... Trench (deepest point on Earth's surface) |
| DEEP | Challenger ... (lowest known point in the earth's oceans) |
| MARIANAS | ... Trench (earth's deepest depression) |
| MARIANA | -- Trench (deepest ocean point) |
| MARIANAS | ... Trench (deepest point on earth) |
