. General: Primary input and factor of production which is not consumed but without which no production is possible. It is the resource that has no cost of production and, although its usage can be switched from a less to more profitable one, its supply cannot be increased. The term ‘land’ includes all physical elements in the wealth of a nation bestowed by nature; such as climate, environment, fields, forests, minerals, mountains, lakes, streams, seas, and animals. As an asset, it includes anything (1) on the ground (such as buildings, crops, fences, trees, water), (2) above the ground (air and space rights), and (3) under the ground (mineral rights), down to the center of the Earth.