A student makes equal amounts of water and oil together in a bottle if found that oil all always floated above the water. what can be said about the density of the oil versus water

A. Their densities are equal
B. Oil has a greater density than water.
C. water has a greater destiny than oil
D. oil and water must equal masses and volumes

Aresearcher conducting behavioral research collects individually identifiable sensitive information about illicit drug use and other illegal behaviors by surveying college students. one of the subjects is in an automobile accident two weeks after participating in the research study. is this an example of an unanticipated problem that requires reporting to the irb? yes, this must be reported because it was not listed as a risk of study participation in the consent form (was unexpected) and the subject experienced harm. yes, this must be reported because it involved a subject in a research study and it’s up to the irb to determine if it was related to participation. no, this does not need to be reported because it was assessed by the researcher as unrelated to the research study. no, this does not need to be reported to the irb since the researcher reported it to the sponsor of the study.

What challenges did nigeria faced after it gained its independence from britain

Economic growth in the united states does not affect the economies of other countries. select the best answer from the choices provided t f