because of ocean trenches are so deep that man made water crafts can't go that low
Oceanic trench.
what happens is the ocean floor does not just keep spreading.instead, it sinks beneath deep underwater canyons called deep- ocean trenches
deep ocean trench
The deep ocean is often called the Abyssal Zone
trench
The rising of the deep cold currents to the ocean surface is called
The Marianas Trench, and many other deep undersea valleys, can be found on the ocean floor.
This iis a trench.Also ocean basin is the deepest part of the ocean.
At deep-ocean trenches, subduction allows part of the ocean floor to sink back into the mantle. The ocean floor does not just keep spreading. Instead, it sinks beneath deep underwater canyons called deep-ocean trenches. Where there are trenches, subduction takes place.
At deep-ocean trenches, subduction allows part of the ocean floor to sink back into the mantle. The ocean floor does not just keep spreading. Instead, it sinks beneath deep underwater canyons called deep-ocean trenches. Where there are trenches, subduction takes place.
trenches
Ecosystems in the ocean are called marine ecosystems. They can be tidal, coastal, or deep sea. They are typically salty.