Answer:
Step-by-step explanation:
The promise of jobs and prosperity, among other factors, pulls people to cities. Half of the global populatiowo-thirds of the world's people are expected to live in urban areas. But in cities two of the most pressing problems facing the world today also come together: poverty and environmental degradation.
Poor air and water quality, insufficient water availability, waste-disposal problems, and high energy consumption are exacerbated by the increasing population density and demands of urban environments. Strong city planning will be essential in managing these and other.