What were some of the factors that allowed the black death to spreac so quickly and with such deadly results?

Climate changes,  rats and flees,  poor living conditions, poisoned food were the main factors that allowed the Black Death to spread so quickly.

Black Death or the Bubonic plague was a fatal epidemic that killed a large population. It was considered to be caused by flees and rats. This plague spread very quickly because people of the infected area did not have any knowledge of how to throw waste properly.

length of the cultivating season was not a problem of new england agriculture

after world war ii, the united states and the soviet union were the major economic, military, and political powers. the world was bilateral multipolar bipolar unilateral

after world war ii, the united states and the soviet union were the major economic, military, and political powers. the world was bipolar.  

the great leap forward, mao zedong's plan to increase china's agricultural and industrial production, was an overwhelming success. true false

the great leap forward, mao zedong's plan to increase china's agricultural and industrial production, was an overwhelming success. true.

explanation: