Revolution means take violent action against an established government or ruler, Where As <span>A revolt may take place somewhere for a particular reason usually to show disgust and as a way to protest about something and for a brief period of time.</span>
Soil conservation refers to preventing erosion of the soil's top layer, as well as decreasing fertility due to overuse, acidification, salinization, or other chemical soil contamination.
I would say B is the answer I hope it helped >.<
