Answer:
When Europeans began to explore and colonize other parts of the world, smallpox traveled with them. The native people of the Americas, including the Aztecs, were especially vulnerable to smallpox because they'd never been exposed to the virus and thus possessed no natural immunity.
Proximity is the factor that determine where the illegal immigrants settle. The country like United States, has so many illegal immigrants that hope to have a better life in the country, they risk their life just to have money in the country because they know that country is rich so they migrate in the United states.
Answer: Observational Study
Explanation: Observational study involves observing and measuring specific characteristics without attempting to modify the subjects being studied.
The perfect life in the country, free of gangs
A:mummification have you heard the term mummy