Answer:
- Subduction: the process in which a deep part of the ocean is formed by the intersection of an oceanic plate and continental plate.
- Mid-oceanic ridge: a mountain range that is formed by seams that run along the ocean floor.
- Seafloor spreading: the process that occurs when new oceanic crust Is formed though volcanic activity
Explanation:
Subduction is the process in which one tectonic plate moves beneath another tectonic plate at the convergent boundary. It is a slow process.
Mid-oceanic ridge is a mountain range in the water formed due to plate tectonics.
Seafloor spreading is a process by which new oceanic crust is formed.
