Answer:
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.
B. Common sense! it’s probably the only thing I learned in apush
Answer:
I have no clue. I have never in my life watched Twilight Zone.
Answer:
I think it's true maybe look I don't know perfectly
