Ill give
this agreement allowed missouri to enter the united states as a slave state and maine as a free state; slavery would also be prohibited north of missouri's southern border?

a. the adams-onis treaty

b. the missouri compromise

c. the northwest ordinance

d. the main deal

b.The Missouri Compromise

Explanation:

The purpose of the Missouri Compromise was to keep a balance between the number of slave states and the number of free states in the Union. It allowed Missouri to enter as a slave state at the same time Maine entered as a free state, thus maintaining a balance in numbers of free and slave states.

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.