How did the first Americans get to this continent? How do we know about these people?

Which is likely the most serious problem associated with an epidemic? 1. there are sometimes no cures to the diseases that spread. 2. people often die from the diseases that spread. 3. there are usually no ways to prevent people from getting ill. 4. people often don’t know they have a disease.

The date a source was created is considered part of its historical context intended audience purpose point of view

Which of the following statements is true of cause and effect relationships