Select the correct answer from each drop-down menu. Study the bar graph showing the population of citles of ancent Mesopotarmla and the physical size of the empire. Then complete the passage
below that analyzes the graph of the empire. Then complete the passage below that analyzes the graph.

You are a historian studying britain. you believe that a rise in the average british citizen's income between 1800 and 1850 can be linked to a rise in literacy. you have many sources of data from a town in britain covering that period. which four types of data would you study to investigate this theory?