| Answer | % Correct |
|---|---|
| Mid-Atlantic Ridge | 84%
|
| Mariana Trench | 79%
|
| Japan Trench | 49%
|
| Philippine Trench | 41%
|
| Aleutian Trench | 30%
|
| Peru-Chile Trench | 30%
|
| Kuril-Kamchatka Trench | 27%
|
| Chile Ridge | 23%
|
| Nazca Ridge | 22%
|
| Sunda Trench | 22%
|
| Puerto Rico Trench | 18%
|
| Middle America Trench | 17%
|
| Pacific-Antarctic Ridge | 16%
|
| East Pacific Ridge | 14%
|
| Tonga Trench | 14%
|
| South Sandwich Trench | 6%
|
| Central Indian Ridge | 5%
|
| Kermadec Trench | 5%
|
| Southeast Indian Ridge | 5%
|
| Southwest Indian Ridge | 5%
|