1. How was 90% of the native populations destroyed? a. By disease b. By enslaving and torturing them. c. By the use of guns d By being fired out of their homes

A the disease the Europeans brought killed them all

When the Europeans arrived, carrying germs which thrived in dense, semi-urban populations, the indigenous people of the Americas were effectively doomed. They had never experienced smallpox, measles or flu before, and the viruses tore through the continent, killing an estimated 90% of Native Americans.

Explanation:

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d. the right to establish a one-house legislature