What is the deepest known part of the world's oceans, and the deepest location on the surface of the Earth's crust?
The Kate Gully
The Josephine Ditch
The Mariana Trench
The Emma Furrow
Marianas Trench is located is in the western Pacific Ocean, to the east of the Mariana Islands. It is about 2,550 kilometres (1,580 mi) long and has a mean width of 69 kilometres (43 miles). It reaches a maximum depth of about 11,034 metres (36,200 ft) at the Challenger Deep, a small slot-shaped valley in its floor, at the southern end.