10. what led to the american involvement in the great war?

A German U-Boat sunk an American oceanliner (the Housatonic), violating its word about suspending unrestricted submarine warfare in the North Atlantic  and Mediteranean after making the statement only 3 days prior.

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

go up to your profile picture in the top right hand. click on it. then click on edit profile. there you shall see delete account