Definition
The seabed is the ground beneath the sea, also known as the sea floor or ocean floor. It is composed of various materials such as sand, silt, rock, and sediment. The seabed supports diverse marine ecosystems and plays a role in nutrient cycling. It's also a source of mineral resources and energy. The seabed can be relatively shallow near the coast or extremely deep in oceanic trenches. Unlike the water column, the seabed is a solid surface where many organisms live.