Exploring the Dark Deep What will we find 1000 meters from the surface? Giant fish Strange Creatures plants ocean trenches and ridges
Trench: very deep, elongated cavity bordering a continent or an island arc; it forms when one tectonic plate slides beneath another. Ridge: underwater mountain range that criss-crosses the oceans and is formed by rising magma in a zone where two plates are moving apart.
Trench: very deep, elongated cavity bordering a continent or an island arc ocean trenches Elevation higher than the floor level
to examine something completely or carefully in order to find out more about it explore something make contact to come into contact with; to touch or feel something; to communicate with Monitor to check regularly; to supervise release to set free