What was a major effect of the 1918 influenza pandemic

The global magnitude and spread of the pandemic was exacerbated by World War I, which itself is estimated to have killed roughly 10 million civilians and 9 million troops.10 Not only did the mass movement of troops from around the world lead to the spread of the disease, tens of thousands of Allied and Central Power ...

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-the island had airfields that the u.s. military needed.