Imperialism and imperial rivalry provided both a cause and context for World War I. Imperialism is a system where a powerful nation controls and exploits one or more colonies. Colonies can also be invaluable sources of cheap labour, agricultural land and trading ports.
A very very bad war and it is sorta still going on.<span />
I believe the correct answer is D, competition among manufacturers in the marketplace is prohibited. Capitalism encourages competition.
Sure if you when I see him I think believeing true majestic mysterious
B. helped prevent and cure diseases like tuberculosis and polio.