Answer:
Some were angered because other nations took over their colonies.
Step-by-step explanation:
Growing resentment between several European countries with the rise of Imperialism brought the rush to invasion, conquest and annexation of African territory. Many European nations captured other territories in Africa. The Berlin Conference in 1885 helped the European powers in the colonization of Africa. The motive behind colonialism in Africa was the acquisition of resources. These include people, labour, minerals, and land. Europeans establish their colonies in the wilderness to get natural resource and rich minerals to prosper their nations.