What type of map would you use to study population growth?

Geography map because it tells you details bout things.

Thematic map is a map that is used to study population growth of a certain region, country or world. This type of map is a specialized kind of map which is mostly used to determine population growth, population density, political, cultural and several other aspects of a place in the world. Other kinds of maps differ with the Thematic maps ion the fact that Thematic maps mostly concentrate on specific things while normal maps show a variety of things without concentrating on a single issue.