What does the balance between seafloor spreading and crust destruction imply about Earth’s size?

Answer

The Earth’s surface area is not expanding significantly

The continuous cycle where new crust is formed at mid-ocean ridges and old crust is destroyed at subduction zones acts as a recycling system that maintains a relatively constant surface area.

What does the balance between seafloor spreading and crust destruction imply about Earth’s size?
GeologyEarthsurfaceTectonicplate