This is my best guess on these plz do not quote me :)
14) T
15) T
16) F
17) F
18) T
19) F
20) T
the German invasion of Poland is usally used as the beginning cause thats when great britain and france entered the war.
I hope this helps. The opposition which emerged to the American System had several foundations. The South opposed<span> federal financing of internal improvements because of the power that would be vested in the federal government, a power which could lead to that government abolishing slavery.</span>
It was difficult for Congress to fund it's operations because Congress relied on contributions from the states.
