Question

what is the theory of tectonic plate

Answer 1

Plate tectonics is the theory that the outerrigid layer of the earth (the lithosphere) is divided into a couple of dozen "plates" that move around across the earth's surfacerelative to each other, like slabs of ice on a lake.

Answer 2

In the 1960's the scientists put forward the Theory Of Plate Tectonics to explain the changing face of the earth.According to this theory,the Lithosphere id broken up into a number of pieces called tectonic or lithospheric plates.