How did agriculture lead to the growth of cities? ?

The areas with the highest population density in europe are most likely to be

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.

Which of the following makes someone an entrepreneur? a.) becoming a partner in a major law firm b.) becoming a highly paid dancer c.) earning a lot of money as a computer programmer d.) running a company that hires people to fix computers