What do the indicators used by economists reveal?

Supporters of the atomic bomb argued against the idea that the united states should not use the bomb against japan by

The first map shows colonial powers and their holdings (1945). the second map shows human development worldwide. compare the two maps. what do the maps indicate about regions that gained independence in the second half of the twentieth century? they differ in their development patterns. they are as developed as their colonial powers. they are more developed than their colonial powers. they remain less developed than their colonial powers.

(05.04 mc) how did the roman transportation system keep the empire strong? plz