1 : Surface area is a country's total area, including areas under inland bodies of water and some coastal waterways. 2  Irrigated land: The number of square kilometers of land area that is artificially supplied with water. 3  Population density: People per square kilometre, in 1999. 4  At this time the world average was 14.42.
A ground fault is an inadvertent contact between an energized conductor and ground or equipment frame. The return path of the fault current is through the grounding system and any personnel or equipment that becomes part of that system.
1 A landslide zone is where the earth could fall and damage structures nearby. 2  A fault zone is an area within 50 feet of a fault line. ( 3 Note: The Alquist-Priolo Earthquake Fault Zoning Act, restricts construction on or near earthquake faults.