4. The discovery of bacteria convinced the British surgeon ___ that clean operating rooms and hospitals are vital to the recovery of sick patients.
A. Clara Barton
B. Joseph Lister
C. Louis Pasteur
D. Florence Nightingale

Characteristics of what type of economic system are being described below? 1.economy in which some/all of the basic economic questions answered by central authority 2.trade generally limited to what is produced through the influence of the government a.command economies. b.market economies. c.traditional economies.

In 1816, john c. calhoun proposed that: a. that the federal government aid in the construction of roads and canals to improve transportation to and from the west b.the united states should end slavery. c.the united states should increasing the size of the navy and invade central america. d. the united states should annex hawaii

Which aspect of the postwar era did jazz’s liveliness, looseness, and improvisation most reflect?