Question

ocean ridges are formed by

a. subduction zones

b. transform boundaries

c. divergent boundaries

d. convergent boundaries

Explanation:

Ocean ridges are formed at divergent boundaries. At these boundaries, tectonic plates move apart, and magma rises to fill the gap, creating new oceanic crust and forming the ridges. Subduction zones (A) are associated with one plate being forced under another. Transform boundaries (B) involve plates sliding past each other. Convergent boundaries (D) are where plates move towards each other, often leading to one plate being subducted.

Answer:

C. divergent boundaries