The triangle trade involved the trade

The triangle trade:

transatlantic slave trade that operated from the late 16th to early 19th centuries, carrying slaves, cash crops, and manufactured goods between West Africa, Caribbean or American colonies and the European colonial powers between West Africa, Caribbean or American colonies and the European colonial powers...

So..

The trade involved in the triangle trade is - slaves, cash crops, and manufactured goods.

Hope this helps!

- Alice

The triangular trade involved the slave trade, who were transported to America to help the colonist in domestic work as well as in plantations, and fields. Europeans exchanged their manufacturing goods like textiles, knives, copper utensils, and guns (and gunpowder) in return of enslaved Africans. From America, European received goods like tobacco, rice, sugar, cotton, and indigo which helped to flourished the triangular trade.  

the soviet union wanted to impose communist governments in eastern europe.

d.

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