Explanation:
Most of the slaves held by West Africans in the late 1800s used to grow food crops. The chapter of slavery in America started in 1619 when 20 salves were brought by the The White Lion in Virgina.
In the 17th and 18th centuries, black slaves worked basically on the tobacco, rice, and indigo plantations of the southern coast, from the Maryland and Chesippe Bay colonies to Georgia in the south.
Congress can check the branches. Congress makes sure that the power stays equal between each branch
By threatening a veto, the President can persuade legislators to alter the content of the bill to be more acceptable to the President. Congress can override a veto by passing the act by a two-thirds vote in both the House and the Senate. (Usually an act is passed with a simple majority.)