12. The Russians faced a civil war in their nation as the czar was replaced by a parliamentary body also known as a
A. House of Representatives
B. Duma
O C. Congress
O D. Soviet

I think it's D Soviet

i think the answer is c

explanation:

c. print money only as needed

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.