South africa is the world’s largest producer of which of the following minerals?
platinum
chromium
gold
all of the above

Aresearcher conducts a focus group to learn about attitudes towards hygiene and disease prevention. two weeks after the focus group, the researcher learns one of the subjects had a heart attack at home and was hospitalized, but made a full recovery. based on dhs regulations, the researcher report this event to the irb? no, this does not need to be reported since the subject had the heart attack when they were home, not at the focus group.no, this does not need to be reported since it is unrelated to participation in the study.no, this does not need to be reported because two weeks have passed.no, this does not need to be reported since the subject recovered.

Under a tyranny the power to make a political decision is in the hands of a

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?