What two german actions caused the united states to enter world war 1?
a) attack on belgium, the use of poisonous gas
b) the zimmerman note, submarine warfare
c) their confiscation of contraband, the sinking of lusitania
d) the blockade against great britain, the invasion of france

All of the following changes typically happened in colonies as a result of imperialism, except: a. cultural practices were outlawed. b. they became more economically self-sufficient. c. european nations built modern infrastructure, including railways. d. the european language became the language of government and education.