The Proving 3 Project.
Plate Tectonics, Continental Drift, & Seafloor Spreading.
Plates-the lithosphere broken into several large slabs
Plate tectonics theory- the plates are moving.
I think this theory is valid because if you take a look at are earth it makes sense and the evidence provided helps it make sense too, what i mean by that is it says the lithosphere is broken into large slabs which are called plates and they move. i think this is valid because how eles would mountains and other landscapes be made if the plates didn't move and glide together.
I think this theory is valid because they had proof of the same fresh water animal fossils, plant fossils and similar rocks all found on the different continents.
i think this is a valid theory because they have proof of the ocean rock ridges being there and all the information they give and state is real not false.