Answer:
Historians have identified several key causes, including: rats, trade networks such as the Silk Road, warfare such as the crusades, poor hygiene and a lack of medical understanding.
Explanation:
It should be A. a secondary source
This is because biographies are texts in which someone writes about someone else's life
Since the writer didn't experience it firsthand it makes it a secondary source
Answer:
B
Explanation:
The Official definition is to "officially exclude (someone) from participation in the sacraments and services of the Christian Church." So it would be option B
Queen Victoria had 9 children
