Answer: Migration increased the slum areas in cities which increase many problems such as unhygienic conditions, crime, pollution etc.
Explanation:
I don't believe that people can be born with prejudices. It's just not possible. I think it's something learned. Why? Because the environments and people a person is exposed to when he/she is young shapes the way that person thinks.
Ways of thinking (including prejudices) are not biologically hereditary, therefore you cannot be born with them. If ways of thinking were hereditary and you can be born with ways of thinking, then wouldn't children always be in agreement with their parents?
Anyway, therefore, prejudices are always something learned, based on who a person learns from, and what environments that person is around.
Answer:
Right option:
It led to the spread of diseases in the Americas, killing thousands of Native Americans.
Explanation:
The Indian peoples of the New World didn´t have anti-bodies that could help resist illnesses that were brought by the Europeans such as the smallpox. These new viruses and bacteria decimated Indian people. Not thousands, but millions of Indians died because of new diseases spread by the Europeans colonizers.