What led to the american involvement in ww1

What is the word you received when you comepleted the reality of versailles activity

In in 1958, the aarp was organized to promote a mandatory retirement age of 65health insurance for retired americansactivism for native americansemployment opportunities for the disabled

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.