Life expectancy at birth, female (years) ( 1 ) United Nations Population Division. World Population Prospects, ( 2 ) Census reports and other statistical publications from national statistical offices, ( 3 ) Eurostat: Demographic Statistics, ( 4 ) United Nations Statistical Division.
Effect on human health: The land when contaminated with toxic chemicals and pesticides lead to problem of skin cancer and human respiratory system. The toxic chemicals can reach our body through foods and vegetables that we eat as they are grown in polluted soil.
The loss of this top soil results in lower yields and higher production costs. When top soil is gone, erosion can cause rills and gullies that make the cultivation of paddocks impossible. The impacts of erosion on cropping lands include: 1  reduced ability of the soil to store water and nutrients. 2  exposure of subsoil, which often has poor physical and chemical properties. 3  higher rates of runoff, shedding water and nutrients otherwise used for crop growth. 4  loss of newly planted crops.