Question

united states - 1950
what kind of information is shown on this map?
a economic activity
b population density
c vegetation zones
d climate zones

Explanation:

The map has a legend indicating "Persons per square mile" which is a key indicator for population density. Population density is calculated as the number of people per unit area (in this case, per square mile). The shading variations on the map likely represent different levels of population density across various regions of the United States in 1950. Options A (economic activity) would typically show things like industries or trade routes, C (vegetation zones) would show plant - life types, and D (climate zones) would show weather - related regions. Since the legend is about people per square mile, it's related to population density.

Answer:

B. population density