Answer:
Valid evidence is based on facts or sound reasoning; invalid evidence is based on incorrect facts or faulty reasoning.
&
Valid evidence is based on information that is closely related to the point being made; invalid evidence is based on contradictory or unconnected information.
Answer:
I believe the answer is Surveillance data im not sure tho.
Explanation:
i hope this helps
Answer:
having yellow fever NO
being a constable NO
living during the yellow fever epidemic YES
having a grandfather NO
knowing someone with yellow fever YES
Explanation: