The document discusses different types of human settlements including rural and urban. It describes the characteristics of rural settlements such as villages which have fewer inhabitants, lower density, and economies based on primary sectors. It then describes the characteristics of urban settlements or cities, which have larger populations, taller buildings close together, and economies based on secondary and service sectors. The document goes on to list some of the main functions of cities, such as residential, commercial, industrial, tourist, political and administrative, and cultural and religious functions. It also discusses different types of urban plans including grid, linear, radial, and irregular plans. Finally, it briefly outlines some advantages and disadvantages of urban life.