Astronomers want to study a star in the Andromeda galaxy, the closest galaxy to our own. Which instrument has the advanced technology needed to study such a far-off object?

rover
telescope
satellite
orbiter

In 1866, a mob in which tennessee city attacked local african americans and burned down homes and schools?

Black death spread because of what problem in medieval europe? which one is it i need the answer quick . a- overcrowded cities b-too many farm animals c-not enough qualified doctors d-all of the above

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.