Choices: (a). Temperature; (b). gas; (c). slipperiness; (d). friction; (e). heat; (f). lack of resistance; (g). Dehydration; (h). wind;

Fact 1: Friction causes an object to lose energy. Fact 2: Objects become confusing, such as toasters, bathtubs, cars and forks. Given the two facts above, what causes a car to lose energy?
Answer:
(d).