Question

1. a hot, rising mantle plume is most likely to be found beneath which type of boundary?

continental - continental divergent boundaries

oceanic - oceanic divergent boundaries

oceanic - oceanic convergent boundaries

continental - continental convergent boundaries

Explanation:

Mantle plumes are hot upwellings from deep in the mantle. Continental-continental divergent boundaries (e.g., the East African Rift) involve thinning continental crust, allowing mantle plumes to rise and drive rifting. Divergent boundaries pull plates apart, creating a pathway for plumes, while convergent boundaries involve subduction (not plume rise). Oceanic divergent boundaries (mid-ocean ridges) are driven by asthenospheric flow, not deep plumes as commonly as continental divergent settings.

Answer:

continental-continental divergent boundaries