Tsunamis: a) are most commonly caused by whale flatulence. b) are caused by especially large tides, earning them the nickname "tidal wave".c) are caused by earthquakes, undersea volcanic eruptions, or anything else that displaces a lot of water in a hurry. d) are caused by changes in the rate of earth’s rotation. e) are caused by earthquakes only.

Oppression against people who make less money is called

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.

When were criminals first used to create a system to catch other criminals