Which of the following would be most useful to a researcher trying to compare different urban environments?(1 point)

Responses

a map showing the distribution of religions
a map showing the distribution of religions

a map showing bodies of water and mountains
a map showing bodies of water and mountains

a map showing variations in temperature across a certain country
a map showing variations in temperature across a certain country

a map showing population density of counties within a countr

a map showing population density of counties within a country