Question

Fill in the blank? At divergent plate boundaries, A.heat from the Earth's core produces mantle plumes. B.oceanic plates sink, causing magma to form. C.tectonic plates move apart allowing magma to move to the surface D.hot spots produce magma

Answer 1

C is the best answer.

Explanation:

A. magma plumes do not necessarily occur at divergent boundaries. First proposed in 1963 this theoretical geological structure is thought to be associated with hot spots.

B. Oceanic plates sink at converging boundaries called subduction zones not at divergent boundaries.

C. At divergent boundaries the plates move apart and magma from the mantle comes to the surface.

D. Hot spots are places where magma comes to the surface often in the middle of a plate.