contestada

Earth's tectonic plates
A.
do not move.
B.
move only up and down.
C.
are constantly in motion.
D.
move only once.

Respuesta :

B because if they were in constant motion there would constantly be earthquakes

Answer:  

The answer is C

Explanation:

Tectonic plates, the massive slabs of Earth's lithosphere that help define our continents and ocean, are constantly on the move.