Toynbee explored civilization processes in his multi-volume A Study of History, which traced the rise and, in most cases, the decline of 21 civilizations and five arrested civilizations.
A) The elevation finder can help you find out the elevation of land for a country, place or other location. You can even figure out the land elevation below the sea or ocean. You can do this by typing in an address, name of a place, coordinates etc., into the corresponding input fields above.
For other uses, see Elevation (disambiguation) . Elevation histogram of the surface of the Earth â approximately 71% of the Earth's surface is covered with water. A sign at 8000 feet (2438 meters) in the San Bernardino Mountains.The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic system, vertical datum).or other uses, see Elevation (disambiguation) . Elevation histogram of the surface of the Earth â approximately 71% of the Earth's surface is covered with water. A sign at 8000 feet (2438 meters) in the San Bernardino Mountains.