Human life depends on a set amount of land for subsistence. Land provides food in the form of plants, animals, and water, shelter, air and nutrients. If the existence of additional land occurs, the following may also occur: the population of life forms may also increase if the environment and climate accommodate this. There may be less competition for food and shelter if more land is available to the current population. With less competition, the focus can be opened up to additional activities such as music, art, trade, and the development of cooperating communities. Additional land that is life-supporting may directly affect the speed of civilization developments.