The Earth's crust is divided into plates that move over the mantle and interact at
plate boundaries. This modern understanding of movement of the crust is explained
by
the principle of superposition
the theory of plate tectonics
the theory of geologic displacement
the theory of continental drift

Respuesta :

Answer:

The theory of plate tectonics

Explanation:

The theory of plate tectonics because it's suggesting that it's about how the plates interact with eachother.