Why were domesticated plants and animals essential to agricultural humans?

Which of the following was the eventual result of the allied attempts to contain soviet expanion

Look at the graph. where p is price and q is quantity, what might cause a move from b to a?

Hey!me its for an important test! ! which issue during the progressive era would most likely have united mary harris "mother” jones and lewis hine? a) ending child labor b) regulating monopolies c) using photography to expose poor working conditions d) exposing the lack of jobs available for untrained laborers