What does this symbol ∞ means in mathematics?

According to your text, the best way to reduce the number of germs is by ventilating spaces and a. cleaning all toys, books, and materials every day. b. keeping all potentially sick individuals out of the center. c. minimizing strenuous physical activity among the children. d. cleaning, sanitizing, and disinfecting surfaces and materials.

Ingredients used in tobacco products been banned?

According to naeyc, are the youngest age group that may be out of the hearing range of supervising teachers for short periods of time. preschoolers infants kindergarteners toddlers