Environmental Science 15th Edition by Scott Spoolman,Tyler Miller

تمرين 20

What is the key concept for this section? What percentage of the world's people lives in urban areas? List two ways in which urban areas grow. List three trends in global urban growth. Describe the three phases of urban growth in the United States. What is urban sprawl ? List five factors that have promoted urban sprawl in the United States. List five undesirable effects of urban sprawl.