Population density expresses how many people occupy a given area of land. It is calculated as population divided by land area and is typically reported as persons per square kilometre or square mile. The stem clearly describes this ratio,so density is the correct term. It is a fundamental indicator in demography and planning.
Option A:
Density helps planners compare crowded and sparsely populated regions and understand pressure on land and services,which matches the idea in the stem.
Option B:
Growth refers to change in population size over time,not people per unit area.
Option C:
Mobility is movement of people (migration/commuting),not the spatial ratio described.
Option D:
Structure refers to composition (age/sex etc.),not the per-area measure.
Comment Your Answer
Please login to comment your answer.
Sign In
Sign Up
Answers commented by others
No answers commented yet. Be the first to comment!