Question

6/10
what does the process of seafloor spreading involve?
glaciers moving the seafloor
sun causing thermal expansion of the seabed
magma pushing oceanic crust apart
continents moving due to wind

Explanation:

Seafloor spreading is a geological process driven by mantle convection. Molten magma rises from the mantle at mid-ocean ridges, then pushes the existing oceanic tectonic crust outward, creating new seafloor as it cools and solidifies. The other options do not describe this core mechanism.

Answer:

Magma pushing oceanic crust apart