Answer:
Lincoln-Douglas debates, series of seven debates between the Democratic senator Stephen A. Douglas and Republican challenger Abraham Lincoln during the 1858 Illinois senatorial campaign, largely concerning the issue of slavery extension into the territories.
Explanation:
Answer: Crop rotation with Row 1.
Fertilizers with row 3.
Pesticides with row 4.
Monoculture with row 2.
Explanation:
Environmental science.
The apartheid system in South Africa was ended through a series of negotiations between 1990 and 1993 and through unilateral steps by the de Klerk government. These negotiations took place between the governing National Party, the African National Congress, and a wide variety of other political organisations.
