The main impact of the invention of the cotton gin in 1793 was on
a. the cost of cotton goods
b. cotton production in the upper south
c. the ability to process long-staple cotton
d. the ability to process short-staple cotton.

Why is james madison significant in regards to the bill of rights?

How does the supremacy clause of the u.s. constitution affect the states? o a. it requires each state to establish a supreme court. b. it declares that the federal government can take away state powers if necessary. o c. it allows state governments to overthrow the federal government if necessary. o d. it ensures that the u.s. constitution overrules each state constitution

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?