If an urban area has extensive green spaces, clean air, and good public services, how can these features influence population distribution?
People choose residential locations not only for jobs but also for health, comfort, safety, recreation, and reliable services. Green spaces can provide opportunities for exercise and relaxation, clean air can reduce environmental discomfort and health risks, and good public services can improve daily life. Together, these qualities may make a neighbourhood more desirable, increase demand for housing, and attract residents or reduce outward migration.
Option D is correct because it identifies improved quality of life as the pathway through which these features influence population distribution. They do not merely increase agriculture, change elevation, or control rainfall. Their effect may vary with housing prices and access, but the likely overall result is greater residential attraction. Therefore D is the best answer.