Biology 1st Edition by Jerome Krueger, Kendra Hill, Robert Noyd

تمرين 11

Current estimates indicate that 90 percent of smokers begin smoking before the age of 20 years. Smoking among college students has declined since 1997 but still is a concern. In 2008, about
22 percent of 18- to 24-year-olds smoked. One recent trend is smoking tobacco from pipes. List several reasons why high school and college students might start smoking.