The document discusses population explosion in developing countries. It begins by defining population explosion as occurring when the number of organisms exceeds the carrying capacity of the habitat. This causes increased poverty, malnutrition, and other problems related to lack of resources. Two main causes of population explosion discussed are religious and cultural traditions, such as preferences for male children and early marriage of girls, as well as improvements in medical facilities that have decreased death rates. The combination of these factors has led to a rapid increase in population that has outpaced increases in food production and economic development. This unsustainable growth is damaging societies and environments.