The regulations of the Missouri Comprose were that the extension of slavery were to be regulated for thirty years. It was made in 1820.
It resulted in crop failure
I think you forgot to give the options along with the question. i am answering the question based on my research and knowledge. The European nations were not satisfied with establishing free trade with Africa and Asia during the era of imperialism because <span>European nations wanted monopoly control of markets and resources.</span>