Question

which statement accurately describes one aspect of plate tectonics that involves subduction and seafloor spreading? older crust is melted at subduction zones. crust is created at the coastlines of continents. continents do not move as a result of seafloor spreading and subduction. crust is created as the mantle hardens under the lithosphere.

Explanation:

• Subduction zones are where one tectonic plate is forced under another. The older, denser crust is melted here.
• Crust is created at mid - ocean ridges (not at continental coastlines) due to seafloor spreading.
• Continents do move as a result of seafloor spreading and subduction as part of the tectonic plates.
• Crust is created at mid - ocean ridges from magma (not as the mantle hardens under the lithosphere in the way described in the option).

Answer:

Older crust is melted at subduction zones.