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.
Japan is located east of both China and Korea
i think there is 1,424,314,615,173,120,000 pounds of fluid is in the ocean
B is the answer hope this helps