Which of these best describes the official status of african americans in the united states during world war i?

Why do you think americans were so fascinated by this idea of the united states stretching from “sea to sea”? give 2 reasons

Francine, a college freshman, has agreed to participate in a psychology research study. before she begins her participation, she reads a statement written by the researcher explaining the purpose of the research and the potential risks of participation. it also explains that francine is free to withdraw from the research at any time. in providing francine with this statement, the researcher has followed the ethical guidelines of for participants.

Ineed to know the answers for all these questions