Land pollution is the deterioration or destruction of the earth's crust, often intentionally or unintentionally as a result of human activities and overuse of land resources. It can occur when waste is not disposed of properly or when humans use pesticides, insecticides and fertilizers during agricultural processes. Increasing agricultural land can cause many environmental problems even without pesticides. Agricultural land continued to expand as demand for food increased. The continued growth of agricultural land has resulted in the loss of habitat for many species. Another problem is the continued growth of a crop or monoculture, as it depletes the soil of vital nutrients used by native plants and can spread diseases throughout the soil. Nutrients can take many years to fully regenerate after a farmer sells their land. The exfoliation of minerals and oil has also contributed to the destruction of the earth's surface. Since the 1700s, natural habitats have been destroyed and environments have been polluted due to industrial practices. This has caused disease in both humans and many other animal species. Such human actions have also caused land degradation, i.e. the fact that many large areas of land begin to lose or completely give up the ability to support forms of life and