What is the basic independent unit of world politics

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.

Which describes a significant different between the north and the south in the year leading up to the civil war

When can a bill be sent to the president for approval?