DEEP SEA TRENCHDon't go into the deep sea dark or you might get eaten by a goblin shark
Deep sea trenches are long, narrow, steep-sided depression in the ocean floor typically occurring in locations where one tectonic plate goes under another.
Any depression in ocean floor is a trench
the largest one, Mariana Trench, can fit Mt. Everest with room to spare
happens when one plate goes under another in earth's crust due to gravity
From the surface the trench imitates a waterfall though it really just reflections from the water and sand
Deep ocean trenches have unusual animals due to the extreme pressure and darkness
