Aconclusion that can be drawn about the allied invasion of normandy in 1944 is that it was a short but difficult series of battles. it was a short but easy series of battles. it was an endless series of easy battles. it was an endless series of difficult battles.

The answer is A. it was a short but difficult series of battles.

the answer is A on edge

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.