Question

is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and gradually moves away from the ridge.

Answer 1

Old crust is destroyed at boundaries where two plates are moving toward each other, or converging. Specific examples include the Australian and Pacific plates, the Caribbean and Cocos plates, and the southwest corner of the North American plate and the Pacific plate.

Step-by-step explanation:

Answer 2

I don't know if you are supposed to explain or name it, but I'll just do both.

Well, the process is called sea-floor spreading. It makes new crust at mid-ocean ridges, and the older crust, when it gets away from the ridge, gets recycled from a deep-ocean trench(Or subduction zone, I can't remember). That is why the Earth don't get bigger