If you could help with 21/22 that would be awesome!! Thank you :).

21. Ancient Rome (i think)

22. Near or close to the seashore (because of docks, obviously)

the phenomenon that would be cited as evidence of increased economic interdependence between europe and the americas is  the development of mercantilism.

this theory suggests that the wealth of a country depends on its economic assets, or capital.

hope this : )

a. by accepting the election of president abraham lincoln in 1860 and convincing other southern states to do the same