spreading plant and animal life over a wider area. ensuring ocean density is not the same globally. carrying sediment from rivers and inland basins. transferring heat to and from various regions.
I gave my students this multiple choice question: Ocean currents, like the Gulf Stream, affect world climate by

Only one answer is correct among these 4 choices:
- spreading plant and animal life over a wider area.
- ensuring ocean density is not the same globally.
- carrying sediment from rivers and inland basins.
- transferring heat to and from various regions.

Could you tell me which one is correct?

transferring heat to and from various regions.