Answer:
DEFINITION of Bureau of Census. The Bureau of Census is a division of the federal government of the United States Department of Commerce that is responsible for conducting the national census at least once every 10 years, in which the population of the United States is counted. Also known as the "United States Census Bureau
Explanation:
From 1928 until his death in 1953, Joseph Stalin ruled the Soviet Union as a dictator, transforming the country from an agrarian peasant society into a global superpower. The cost was tremendous, however: Stalin was responsible for the deaths of millions of Soviet citizens.
Well anybody who is fighting a war that must ship soldiers across the ocean. Considering you're in middle school, the answer would probably be Britain in the American revolution or the 7 years war.
"To accommodate for lack of dependable rainfall" would be the best option as to why the ancient Chinese organized large groups of people to build and maintain irrigation systems, since when rainfall would not come for long periods of time, the crops would likely die without proper irrigation.