How do we know that plate boundaries are real?

But did thee feel the Earth move? ↓ More info and sources below ↓ Why do Africa and South America fit together? read more

Best Answer: We only assume and accept the theory of moving tectonic plates. There are several question raised by some experts who deny the movement of tectonic plates.Like when the plate moves in one direction the other side gap increases or not.How that huge mass can move without moving the crust. read more

We can even detect the depths from which they’re originating. This gives us a good idea at what angle the plate is descending at convergent zones. We can see the spreading ridges at divergent boundaries and the trenches where plates are subducting (originally because of sonar, but now they can send cameras down there). read more