The concrete operational stage of cognitive development is characterized by the active and appropriate use of

_____ is the world's most widely used stimulant.

a.) Nicotine b.) Dextroampthetamine c.) Caffeine d.) Cocaine

You are talking to an exchange student about the different styles of education that occur in the United States and her country. She told you that grades matter very little and standards for performance are very relaxed

In fact, they have four years of university-sanctioned leisure to think and to explore. What country is she most likely from? a. Great Britain b. France c. Japan d. Canada