Pls help me it is a test i need it right now :(

1.) cotton
2.)dixie
3.) b
4.)the union was the us at the time of the civil war (north)
5.) maine
6.) missouri
7.)california
8.)fugitive slave act
9.)james buchanan
16.) april 12 1861
17.)d?
18.)a
20.) 4
21.)richmond virginia
i dont know the rest sorry

The exchange of foods between the new and old worlds