what is a trench in science

Answer 1

In science, a trench is a long, narrow depression in the ocean floor that is formed by the subduction of tectonic plates. Tectonic plates are large pieces of the Earth's crust that move and interact with each other. When two plates collide, one plate is forced beneath the other, creating a deep trench in the ocean floor. The deepest trench in the world is the Mariana Trench, located in the western Pacific Ocean, which reaches a depth of over 36,000 feet (11,000 meters). Trenches are important features in the study of plate tectonics and the geology of the Earth's crust.