Who were the cavaliers?
a. aristocratic supporters of the crown
b. populist supporters of parliament
c. christians who lived in austere, simple lives
d. oliver cromwell's followers

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.

b.provides a written record of the transaction

your answer would be a) no nation can be economically self-sufficient.

stay in school!