Comprehensive information about deep-ocean trenches. Includes maps, a video [1:29], and a vocabulary list.

Detailed information about oceanic trenches, their structure, and how they are formed. Discusses the twenty trenches that exist around the world. Includes several labeled illustrations.

Around 72 percent of the Earth's surface is found under the oceans. It has always been contributing to the dynamically changing face of the Earth through the tectonic phenomenon occurring at its depths. Such a naturally occurring...

A short description of the world's deepest ocean trench. Includes diagram and map.