What was the black death

The Black Death was the deadliest pandemic recorded in human history. The Black Death pandemic resulted in the deaths of up to 75–200 million people in Eurasia and North Africa, peaking in Europe from 1347 to 1351. Plague, the disease, was caused by the bacterium Yersinia pestis.

Explanation:

The Black Death was an epidemic of bubonic plague, a disease caused by the bacterium Yersinia pestis that circulates among wild rodents where they live in great numbers and density.

Explanation: Hope this helps and have a nice day.

b is the correct answer

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explanation:

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions