What were negative effects of imperialism on the Congo?
Among other things, the Congo was run essentially as a personal fiefdom by the Belgian King Leopold I, who used a great deal of brutality in an effort to essentially extract as much wealth as possible, primarily in the form of rubber, from the colony. Coercive tactics such as mutilation and execution were commonly used in order to ensure compliance. See Hochschild, King Leopold's Ghost (1998).
Well some positive effects of american imperialism was the involvement in the panama. This helped them maintain liberty and establish a democracy. And another was the involvement of puerto rico;which help them from a democratic government a negative effect was the annexation of hawaii illegally;which left the hawaian people not wanting to be under u.s control.
Imperialism and its partner, colonialism did great damage to under developed nations. Because of their power, the imperialists were able to exploit the workers in these nations and export the wealth of minerals these nations had. Later, these nations found themselves without the resources that the imperialists had stolen from them.
What were the positive and negative effects of imperialism for the british the mother country and for India the colony?
Imperialism lead to worsen condition's in India negative effects: Racism grew (british to the Indians) economic hardship, british were upset by the Indian desire for self rule and nationlism, loss of self sufficiency, reduced food production which led to famines. Positive effects: railroads were built, communication grew due to the building of telephones, and the telegraph, desire for unity, modern economy, public health improved.