Answer:
purpose is the point the author is trying to get across, a social thing. The authors perspective is his thoughts, a personal thing.
Answer:
Sample Response: Because people did not know that yellow fever was caused by the bite of an infected mosquito, they assumed incorrectly that people could catch the disease through touch. To help control the disease, letters were cleaned with vinegar before being sent. This did not work, because it was a false cause-and-effect relationship.
Explanation:
Question:
What investigation ?
There’s no picture I’m not sure
