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.
Sound wave is a pressure caused by the vibration of something in a medium that transfers anergy, like air.
Tropical!!!!!!!!! i think
The state of Vermont is known as green mountain state.
