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.
Erosion occurs mainly because of water. Increased amounts of water tend to overflow onto land. As the water increases, the soil becomes over-saturated with water. According to a Virginia Tech environmental professor, most of the soil particles end up flowing with the water sources, such as lakes, rivers or the ocean.nvironmental Impact. Erosion can result in radical changes to ecosystems. Plant life may be unable to sustain itself or create new generations of plants in the eroded soil. If the soil that washes away contained hazardous, man-made chemicals, the chemicals enter into the water supply.