Tectonic Plates Theory Flashcards
1
Q
Describe and explain the theory of tectonic plates
A
The theory of plate tectonics states that the Earth’s solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet. The three types of plate boundaries are divergent, convergent, and transform.