In the last few decades, rates of nearly all substance use have increased sharply among American adolescents.

Compared to several decades ago, children today are less likely to walk to school and more likely to be involved in sedentary activities

Indicate whether the statement is true or false

Which of the following is NOT an example of an affordance?

A) the biology teacher who gives you an opportunity to improve your grade B) the attractive new person in class who smiles at you C) the boss who threatens to fire you D) your performance on a test