Which of the following countries posed the largest threat to invade the united states in 1783?
a. russia
b. great britain
c. france
d. all of the above

africa

explanation:

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.

answer: to put them in the gas chambers

explanation:

and rpe them