Why did nationalism contribute to imperialism

nationalism leads people to believe their nation is better than other nations and leads them to seek to be independent state while disregarding other nations, causing conflict.

d.

the northwest territory became the most densely populated area in the u.s.

the installment plan of the 1920s, an arrangement that allowed people to buy what they wanted with a small down payment and pay off the rest in monthly installments, provided americans a way to own what they did not have the money to buy.