Respuesta :

Answer:

Seafloor Processes

Oceanic lithosphere forms at midocean ridges, where hot magma upwells, and then cools to form plates as the material moves away from the spreading center so d

Explanation:

Answer:

The answer is the last one .

Explanation:

The process by which new oceanic lithosphere (seafloor) forms when magma rises to Earth's surface at mid-ocean ridges and solidifies, as older, existing sea floor moves away from the ridge.