Land is considered a resource by various groups for different reasons. Economists see land as having economic value. Geographers view land as the place where natural and cultural landscapes develop. Geologists define land as the geological structure of an area. Agricultural scientists see land as important for farming and agriculture. Land is essential for human civilization and development, providing the basis for agriculture, forests, transportation, settlements, industry, waterways, and as part of the biosphere. It also contains important mineral resources. Proper, scientific use of land resources is necessary for continued human progress.