Question

1. choose the best answer.

at 10.9 km below sea level, the deepest trench in the world is the ______ trench.
mariana
south sandwich
tonga
peru - chile

Explanation:

The Mariana Trench is widely known as the deepest part of the world's oceans. It has a maximum known depth of about 10.9 km below sea level. The South Sandwich Trench, Tonga Trench, and Peru - Chile Trench are also deep oceanic trenches but not as deep as the Mariana Trench.

Answer:

Mariana