Which of the following were included in the Republican Party's platform for the 1860 election?
seceding from the United States
stopping slavery's spread in the United States
introducing slavery to the North
preventing people from settling in the West

stopping slavery's spread in the United States.

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B. stopping slaverys spread in the United States.

Explanation:

i got it right

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

the correct answer is the last one accuustomed to millary involvement overseas hope this !