what is the theory of plate tectonics
Answers
Plate tectonics is a set of theories that describes and explains the distribution of earthquakes, volcanos, fold mountains and continental drift. It states that the earth’s core consists of semi-molten magma and that the earth’s surface (or crust) moves around on the magma.
Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth's lithosphere, since tectonic processes began on Earth between 3 and 3.5 billion years ago.
Definition of plate tectonics. 1 : a theory in geology: the lithosphere of the earth is divided into a small number of plates which float on and travel independently over the mantle and much of the earth's seismic activity occurs at the boundaries of these plates.
Plate tectonics is the theory that the outer rigid layer of the earth (the lithosphere) is divided into a couple of dozen "plates" that move around across the earth's surface relative to each other, like slabs of ice on a lake.
