Answer:
Explanation:
difference between them is Union believes in free states from slaves and that all colored people have equal rights, while confederacy wanted slaves and did not believe in equal rights (remember the Revolutionary war or the civil war)
Article I, Section 8, Clause 8, of the United States Constitution grants Congress the enumerated power "To promote the progress of science and useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries."
It provided a means of transportation for goods across the country.
