Which scenario would be most appropriate to study using a natural experiment? I. the effects of an herbicide on human health
II. the influence of sleep on exam performance
III. the effects of an earthquake on blood pressure

a) III only

b) I and III

c) I only

d) II only

Jacob’s four-month-old infant is crying continuously. while jacob’s wife suggests that he pick up the baby, jacob’s mother thinks that picking up the baby each time she cries is bad for the baby. why is jacob’s wife right? a. babies sleep better when carried. b. babies learn to cry whenever they want someone to hold them. c. babies may choke if crying while lying on their back. d. babies develop a sense of trust that someone is there to provide care.

Can a society achieve liberty without equality? explain.

Maria is late for school sometimes because she is not a morning person. if maria is at school from 8: 00 a. m. to 3: 00 p. m. every day and volunteers at an animal shelter on the weekends, when would be the best time for her to study? a. before school b. right after school c. during the weekend d. before she goes to bed