9. Which of the following is a reason that people in history may have traveled away from their home communities? ○poor education systems and schools
O harsh weather patterns
O too many cars
O excessive agriculture

According to the national health and safety standards: guidelines for out-of-home care, what is the proper adult-to-child ratio for children younger than one year? a. one adult to one child b. one adult to two children c. one adult to three children d. one adult to four children