Which detail directly supports the following topic sentence?
Urban sprawl has had a dramatic environmental impact.
People who live in the suburbs use their cars more often than city dwellers, which increases air
pollution.
As more and more city residents move to the suburbs, the tax revenue available for city services
and infrastructure declines.
Historically, the development of suburbs has led to racial segregation because white families were
the first group to start moving to the suburbs in large numbers.
Suburban areas are often very desirable places to live for many people, especially families with
young children.
