Answer:
vaccination
Explanation:
Louis Pasteur had been working to find a vaccine that would cure cholera in chickens. His lab assistant gave an older, weaker strain of the disease to the birds. When these birds did not die Pasteur began to rethink his ideas a came up with our current method of administering vaccinations.
To navigate people and find peope
Answer:
The convention system gives them the opportunity to take care of the other party's business besides nominating candidates.
Explanation:
Muhammad heard the voice of the Angel Gabriel, relaying Allah's word, whom told him what to do, and whose teachings he learned off-by-heart.
An urban area that controls neighboring farmland but is not under the control of any empire or another government is called as the city-state. The city-state is like a small country that governs small city or cities and is not being managed by another government.
