Answer:
The purpose of a map scale is to help the user to know the distance between 2 or more cities or geographical elements.
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 Thames, my dear child.
*** River Thames***
not ''Thames River''