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.
A reverse fault is one in which one side of the fault, the hanging wall, moves up and over the other side, the foot wall. This movement is caused by compression and is common at tectonic plate boundaries. A thrust fault is a reverse fault that is at an incline of less than 45 degrees.