Question

when are new ocean ridges and areas of seafloor formed? when tectonic plates move together when tectonic plates are stable when tectonic plates move apart when tectonic plates slide against each other

Explanation:

To determine when new ocean ridges and seafloor areas form, we analyze tectonic plate movements:

• When plates move together (convergent boundaries), subduction or mountain - building occurs, not seafloor formation.
• Stable plates don't create new geological features like ocean ridges.
• At divergent boundaries (plates moving apart), magma rises, solidifies, and forms new oceanic crust, creating ocean ridges and seafloor.
• Plates sliding against each other (transform boundaries) cause earthquakes, not seafloor formation.

Answer:

C. when tectonic plates move apart