How many physiographic regions are there in the united states

Which pronoun has an unclear antecedent in the following sentences? the sixth-grade students liked volunteering their time to read to the elderly people in the hospital. it made them happy. a. their b. it c. them d. no unclear antecedents

The conflict perspective explains deviance in terms of power and inequality. select the best answer from the choices provided t f

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society