What is the name of the fine dark fuzz that covers a newborn and soon disappears?

Which of the following is true of an erg?

A) It causes selective attention. B) It stimulates goal-directed behavior. C) It stimulates an emotional response toward certain objects. D) all of the above

Although lead has been banned from gasoline for three decades, lead from gasoline is still found

a. in some gasoline. b. in soil near streets with heavy traffic. c. in the air. d. in paint that is sold today.