<span>Now imagine that happening to an entire continent. This was the effect of Europeanimperialism in Africa in the late 19th century through the mid-20th century. ...Imperialism changed all this, as Europeans disrupted these traditional ways and imposed their beliefs and social structures on colonized Africans.</span>
With economic stability came the need for warriors, as food became more plentiful, people were freed up to serve as community leaders, and as settlements developed, leaders emerged to help organize and regulate these budding civilizations. Hope this helps.
a. the u.s. military attacked north korean forces to prevent them from conquering all of korea.
As a result of the energy crisis, in 1973-1974, U.S citizens became aware of ecology. If not, their environment would be endangered.