What do research interactions and main effects mean?  What do interactions reveal that main effects cannot?

How does désir represent the diversity of europe today? how did the 1400s and 1500s affect the religious diversity of europe? how might cultural diversity in a place like germany affect everyday life? what are two reasons some europeans might find immigration to be an advantage? what are two reasons some might find it to be a disadvantage? why do you think languages and culture spread more easily in europe now than in the past?

4) what articles do you think a soldier would have in his “old kit bag”?

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?