8. Which TWO statements correctly describe the process of forming a mid-ocean ridge?
A.
New oceanic crust is formed at mid-ocean ridges.
B
Mid-ocean ridges form over a long time scale.
Mid-ocean ridges form quickly when cooled magma moves down.
D.
Mid-ocean ridges occur when continental and oceanic plates collide.
E.
Continental crust is destroyed when mid-ocean ridges form.