What conditions at the merrimack river did lowell’s early industrialists use to their advantage?

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.

  following the agreement that was reached in the treaty of indian springs in 1825, chief william mcintosh lost his life. why did this happen

How did ancient civilizations develope its agriculture and protect its population