What are three materials transported by global ocean circulation?

Three materials transported by global ocean circulation are water, nutrients that are brought to the surface of the water and oxygen that is taken from the surface and sent to the deep ocean.

Volcanoes make new rocks so not ahotspots are the the stuff that makes volcanoes mid atlantic ridge(mar cause i’m lazy) is a constructive plate boundary so it makes sense that new rocks would be found near it, also the mar is in the middle of the ocean so it fits the description deep ocean trench, umm, there’s no ocean trenches to where you’re goingso the mar is most likely the answeri wouldn’t trust me but hey why not