How do american citizens exercise popular sovereignty

What does the document of the birtish octopus is an uderlying cause of the world war 1

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.

Why did federalists fear the louisiana purchase? what did they think would happen?