The document discusses the differences between rural and urban societies. Rural societies began with the domestication of animals and agriculture around 20,000 BC and are characterized by small populations, close contact with nature, agriculture-based occupations, and influence from natural phenomena. Urban societies emerged later during the Industrial Revolution due to technological developments and trading. They have very large populations, isolation from nature, a wide range of occupational choices, and polluted environments. Managing the rural-urban interface is important to balance resources and migration between the two societies.