Earth science is known as plate tectonics. Plate tectonics might be thought of as the process by which the Earth is resurfaced. As the result of seafloor spreading, new crust and lithosphere is created by the flow of magma from the mantle to the near surface, through fissures, where it cools and solidifies. Through subduction, oceanic crust and lithosphere returns to the convecting mantle. Areas of the crust where new crust is created are called "divergent boundaries", those where it is brought back into the Earth are "convergent boundaries" and those where plates slide past each other, but no new lithospheric material
What on Earth! habits and funeral rites of this "species." The film shows the earth from the view of the Martian flying machines which did not land but used cameras to film earth society. It then follows one average (what it believes to be) earthling and its civilization, by in effect showing a "day in the life" and how they live it. First, it shows one going through dinner with a precisely regulated feeding (vehicle refueling from a gas pump), then it must take its rest (pulling into an attached garage next to a house), because it will have a busy day the