Express powers of Congress? Not 100% sure
The Han Dynasty collapsed due to a mixture of internal forces and external rebellion. Internal forces include decreasing tax revenue which limited the ability of Han Dynasty to fund the court a<span>nd to support the armies that defended China from external threats. External causes include threats of invasion from the Steppe Societies.</span>
<span>A. Slavery was prohibited north of the Ohio River.
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Anything north of the Ohio river was slavery free and anything south was free game for slavery.
I think you forgot to give the choices along with the question. i am answering the question based on my knowledge and research. <span>The person most known for contributing to the final form of the constitution was James Madison. I hope that this is the answer that has actually come to your desired help.</span>