Answer:
Explanation:
In a feudal system, a peasant or worker known as a vassal received a piece of land in return for serving a lord or king, especially during times of war. Vassals were expected to perform various duties in exchange for their own fiefs, or areas of land.
Answer:
A process to further limit carbon dioxide emissions from burning coal.
Explanation:
I think the answer is A. Roman government stops taxing its citizens.