Which of the following is a reason that few people live in northern canada? a. high levels of air pollution discourage people from settling there. b. there are a few jobs to attract people to the region. c. melting glaciers pose an environmental hazard in the region. d. the inuit refuse to let outsiders settle on their lands.

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups. b. a researcher conducts a linguistic study of comments posted on a local public blog. c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression. d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.