huge cracks in the ocean floor are called trenches.
A crack in the ocean floor is called a rift. Rifts are areas where tectonic plates are pulling away from each other, leading to the formation of new crust underneath the ocean.
thermoacidophile
valley
a crack in the ocean floor appears.
thermoacidophile
what happens is the ocean floor does not just keep spreading.instead, it sinks beneath deep underwater canyons called deep- ocean trenches
In the ocean floor.
probably..
Deep Trench in the ocean floor. It can sometimes be mistaken for a mid-ocean ridge.
the continental Margin, Ocean Basin Floor and Mid-Ocean ridge :D
an abyss
It is the Abyssal plain.