Six-year-olds Jason and Curtis are rolling around in the dirt in what appears to be a fight, yet they both get up smiling. Curtis then sticks out his tongue at Jason and runs off, and Jason follows him in hot pursuit. Which one of the following alternatives best describes their interaction?
a. hyperactivity
b. rough-and-tumble play
c. insufficiently developed social skills
d. a tendency for aggression unusual in 6-year-olds
Question 2
One of the most effective ways to encourage children to eat healthy foods at school is to:
a. involve the children in preparing the meal.
b. permit children to bring snacks to school.
c. allow children to have dessert only when they eat something more healthy first.
d. set up a tracking system that invites children to count the calories and nutrients in their meals.
The nitrogen cycle. Numbers represent fluxes as 1012 g N per year (data from Schlesinger 1991, after
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