Answer:
mountain chains, earthquakes, volcanoes.
Living resources are technically renewable, so trees, for example, they are needed for firewood, paper, whatever else we use trees for as a 'resource.'
Nonliving resources would be like coal, something that takes a long time to get there.
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 difficulties as the world's urban areas swell.
