List of submarine topographical features

Columns: Name | Location | Depth ( meters ) | Depth ( feet ) | Depth ( miles )
1 | Challenger Deep | Izu-Bonin-Mariana Arc , Mariana Trench , Pacific Ocean | 11,034 | 36,197 | 6.86 | 2 | Tonga Trench | Pacific Ocean | 10,882 | 35,702 | 6.76 | 3 | Galathea Depth | Philippine Trench , Pacific Ocean | 10,545 | 34,580 | 6.54 | 4 | Kuril-Kamchatka Trench | Pacific Ocean | 10,542 | 34,449 | 6.52 | 5 | Kermadec Trench | Pacific Ocean | 10,047 | 32,963 | 6.24 | 6 | Izu-Ogasawara Trench | Pacific Ocean | 9,810 | 32,087 | 6.08 | 7 | Japan Trench | Pacific Ocean | 9,000 | 29,527 | 5.59

Example questions:
Which trench is the deepest topographical feature of the Southern Atlantic Ocean ? | Which submarine topographical feature is located in the sea home to the numerous islands of the West Indies ? | What is the depth in miles of the trench formed where the Australian-Capricorn plates subduct under a part of the Eurasian Plate ? | What is the depth in feet of the trench that extends from the Kuril Islands to the northern end of the Izu Islands ?

Answers:
South Sandwich Trench | Cayman Trough | 4.63 | 29,527