Which civilization first started using iron to make weapons?

Which statement describes the impact of the 21st amendment?

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.

How did the soviet union respond to the establishment of west germany and west barlin?