The image shows a world map. A map of the world that shows population density by the number of people per square kilometer.

Which measurement of population does this map illustrate?

population in relation to resources
population changes
population density
population in relation to ethnicity

population density

Explanation:

The description of the map shows that it describes population density which is the number of people who live per square kilometer. Population density is usually higher for urban areas than it is for rural areas because there are many more people in urban areas than in rural.

Countries with a large population and a small area will also have high population density such as Nigeria whilst areas with a relatively low population but a large area will have a lower population density for instance, Russia.