Why is the 1920's considered the first decade of the modern era

Which type of local government is expressed in this map of georgia?

The plantation economy in the south produced a. equal opportunity for all whites and no illiteracy. b. low profits despite the enslavement of a great number of people. c. great profits and developed great educational institutions. d. great profits at the expense of cultural development and equal opportunity.

What percentage of people in britain lived in cities in 1850? a.) less than 5% b.)between 6 and 10% c.) more than 20%