True or false the theory of plate tectonics states that the earth's crust is composed of many plates that move gradually across the earth's surface

Yes this is true. Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core. Since the mantle is in a somewhat liquid state this makes sense.

the world may never know

the answer is 1.. i think