How did American industry change from the beginning of WW2 to its end?

What is political gerrymandering, what does is accomplish, and why might legislators use this tactic in redistricting

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.

This amendment made cuba an american protectorate and forced cuba to cede guantanamo bay to the u.s.