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.
Fault âa fracture or zone of fractures in rock along which the two sides have been displaced relative to each other. Fault plane âThe plane along which the break or shear of a fault occurs. It is a plane of differential movement, that can be vertical as in a strike slip fault or inclined like a subduction zone fault.