Mariana Trench is the deepest place on earth. Oceanographers call
its deepest points, "Challenger Deep". Its deepest points
are 36,000ft below sea level, that's about 6.8 miles/11 kilometers
deep. The deepest part of the trench is deeper than Mt. Everest is
tall. It is part of a large area that includes the Mariana Isalands
as well as the trench. The Mariana Island chain is known as an island
arc. Island arcs are formed by volcanic activity.
Mariana Island chain is the closest Pacific Island chain to Japan
and it is 750km long. Guam, a United States territory, is the island
at the southern end of the Mariana Island chain. The average temperature
for the Mariana Islands is 85 degrees Fahrenheit.
vents put out smoke and volcanic ash. They heat up the water near
them and some life can survive.
Areas in the
trench that are close to volcanic vents, some plant life does grow.
Photographic Citations: Photographic citations can be found
by passing the mouse over the photograph.