Why did the united states enter world war i? why didn't they remain neutral?

Although the three-fifths compromise northern and southern states reach an agreement that allowed for ratification of the constitution, in the long run it had a negative effect on the nation because a) it gave too much power to the executive branch of the government. b) it forced the founding fathers to add the bill of rights to the constitution. c) it was only a temporary solution to the argument between "free" and "slave" states. d) it gave too much power to state governments and not enough to the federal government.

Does anyone know why the second great awakening occurred? (i need an answer asap because this is a question on my assignment! < 3 : ))

What is the columbian exchange? o a. the changes that resulted from europeans settling in the new world b. the relationships that columbus and his men had with the natives they met o c. the ships that columbus bought with money from the king and queen of spain o d. the increase in the number of native american towns in the new world