HELP ASAP PLEASE !!!!
2. In sea-floor spreading, molten material rises from the mantle and forms
a. the edges of all the continents.
b. mid-ocean ridges.
C. deep-ocean trenches.
d. the north and south poles.

Relax

Respuesta :

Answer:

b. mid-ocean ridges.

Explanation:

b. mid-ocean ridges. → At a mid-ocean ridge, molten material rises from the mantle and erupts.