Final answer:
The sediment on oceanic crust can reach a maximum thickness of about 50 meters.
Step-by-step explanation:
The statement is true. The sediment that accretes on oceanic crust can only reach a maximum thickness of about 50 meters.
The oceanic crust covers 55% of Earth's surface and is typically about 6 kilometers thick. It is composed of volcanic rocks called basalt, which are made primarily of silicon, oxygen, iron, aluminum, and magnesium.
The sediment that accumulates on the oceanic crust is primarily mud and the shells of tiny sea creatures. Sediment is thickest near the shore where it comes off the continents in rivers and wind currents.