EVERYDAY SCIENCE

Detailed explanation-1: -First, population growth results in the outward expansion of urban areas (sometime population decline also can be a precursor to sprawl). Second, rising incomes allow residents to purchase larger living space.

Detailed explanation-2: -Mixed land use do not cause any urban sprawl, while all the remaining factors (Automobile and highway construction, Living costs, Urban blight, Government policies ) contribute to urban sprawl.

Detailed explanation-3: -For example, the population of the metropolitan areas of Chicago, Illinois, Kansas City, Missouri, and Baltimore, Maryland, grew by 1 percent, 16 percent and 20 percent, respectively, between 1970 and 1990, but each area’s geographic extent grew by 24 percent, 55 percent, and 91 percent, respectively.

Detailed explanation-4: -In addition to air and water pollution, adverse environmental impacts of sprawl include deforestation and disruption of wildlife habitat.