ocean trench
Trenches are among the deepest places on Earth. This topic is part of Oceanography within Science & Nature. This page currently draws on 6 supporting questions, with answers and bonus facts available below.
ocean trench trivia questions
An ocean trench is a long, deep depression in what?
Answer: Seafloor
Bonus fact: Trenches are among the deepest places on Earth.
Ocean trenches commonly form at what tectonic setting?
Answer: Subduction zones
Bonus fact: One plate bends downward beneath another.
What is the deepest known ocean trench?
Answer: Mariana Trench
Bonus fact: Challenger Deep lies in the Mariana Trench.
Subduction zones are associated with deep ocean trenches and what?
Answer: Volcanic arcs
Bonus fact: Melting above the descending slab feeds volcanoes.
The 2012 Deepsea Challenger dive descended into which ocean trench?
Answer: Mariana Trench
Bonus fact: Challenger Deep lies nearly 11 kilometers below sea level.
Which feature commonly forms where an oceanic plate begins descending at a subduction zone?
Answer: Deep-ocean trench
Bonus fact: Subduction zones can also produce earthquakes from shallow to deep depths and chains of active volcanoes.