Which development resulted in the spread of disease and increased mortality rates during the industrial revolution?
a. emigration to the united states
b. overcrowding in cities
c. increased division between social classes
d. development of pasteurization

Two of these describe “federalism." (choose two answers) select one or more: a. the national government absolutely controls all state governments. b. power is shared by the national and state governments. c. state governments exercise absolute power over the national government. d. it is a compromise meant to eliminate the disadvantages of a “unitary” and a “confederate” system.