What invention caused the slave trade to explode in the south

Cotton Gin

Explanation:

From 1790 until the Congress prohibited the importation of slaves from Africa in 1808, 80,000 Africans were shipped from Southern Africa. By 1860, about one in three Southerners was a slave. Because of the cotton gin, slaves were now employed on ever-larger plantations where labor was more regimented and unrelenting.

the section of the chart that represents a point at which a bill needs approval from a majority of people in both chambers to advance is j, as this is the only section before the bill becomes law which has both rows (symbolizing the chambers) converging into one, meaning that the two parts of the congress have to approve of it before it can march on with the process.

someone or something lol