Why did the United States find Germany’s U-boats more problematic than the British naval blockade?

Why would the rumor of a government contract change the value of this companys stock

Explain how zollverein, a tariff agreement, to unite the german states.

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.