Answer:
Diseases such as smallpox to which the natives were not immune to. Why did many native soldiers in Mexico decide to join forces with the Spanish conquistadors? Because they shared the same enemies, they were sick of their ruler and to stay alive.
A living bird is an example
The vast majority of people in Persian ethnic groups practice the religion of Islam.
Political, Natural, Landscape, Geometric, Fiat, Relic, Lines of Control (LoC), Maritime, Airspace, Frontier.