Robber Barons Definition: These men earned the title of 'Robber Barons' due to their greed and ruthlessness, their unethical business practices, unscrupulous tactics and their total lack of concern for their workers, their customers or their competitors. ... The power of the Robber Barons grew.
Answer:
lack of awareness to utilize resources
I don’t know for sure but I would assume it’s the Holocaust that Hitler introduced as a way of removing and Jews from Germany living the country with citizens who were pure arien.
Answer:
The revolutions of 1989 resulted in the end of Communist rule in Central and Eastern Europe and beyond.
Hope that helps