a hole in the ground :)
An ocean mountain is a mountain that is completely underwater. If measured from sea level, it would have a negative height.
When oceanic crust is pushed under continental crust in a subduction zone, a deep trench is formed at the boundary between the two plates. The oceanic crust then descends into the mantle, creating a convergent plate boundary. This process can lead to the formation of volcanic arcs on the overriding continental plate.
A French Drain is simply a gravel filled trench that crosses a property to remove water. The gravel provides porosity and the trench the directionality. With todays geotextile fabrics it would be possible to put a porous membrane across the op of the trench to keep it from silting up while providing the option for a sod grass cover.
The Kermadec Trench is an oceanic trench that has a depth of 32,963 feet. This trench region is located between the North Island of New Zealand and an island called Tonga.
The Mariana Trench is a convergent plate boundary.
an oceanic trench
Stay in the freaking trench!
The opposite of a trench would be an embankment, berm, or dike.(the opposite of a marine trench is a seamount or ridge)
When you come to this trench, swim through it, not over it.
an oceanic trench
an oceanic trench
An ocean trench is a deep canyon in the ocean floor that forms at a destructive plate margin where oceanic crust flows back into the Earth's mantle. An example would be the Mariana Trench is the deepest point in any ocean and is located in the Pacific Ocean
trench foot, trench fever, tetanus
Trench
The Marianna Trench is great example of subduction.
The remedy for severe trench foot would be amputation or staying out of the water
The correct name for "trench foot" is Immersion foot. This occurs when the feet are constantly kept wet for a prolonged period of time. An example of this was during World War One, where soldiers in the trenches would be stood most of the time in pools of water. This was also the origins of the name "trench foot".