Why did World war One become a global war?

Brainliestttme : ) what are trading blocs and what is the impact of international cooperation?

Human rights groups in the 20th century worked to: o a. european imperial powers maintain control over their colonies. o b. convince citizens in impoverished countries to embrace nationalism. o o o o c. ensure that people around the world were protected from brutal treatment. o d. weaken the influence of international organizations like the united nations. sub

Which man believed that african americans should actively fight for the rights they deserve, even if they put their lives in danger?