What kind of map could you use to show information about a city? a. a relief map b. a population density map c. a political boundary map d. a vegitation map all of the above

The two types of maps that can be used to show information about a city is a population density map, a relief map, a political boundary map, and a vegetation map. The correct answer is All of the above. 

Exposed great deposits of coal and iron ore

Answer decreased soil salinity;