Answer:
A longitudinal analysis of US adolescents22 estimated that a 10% increase in the proportion of classmates who smoke will increase the likelihood of smoking by more than 3%, while an increase in smoking rates of 10% among an individual's close friends will increase the likelihood of smoking by 5%.
Explanation:
hope it will help you
Not one specific person discovered medicine
Answer: a medicinal preparation for inhaling.
serving for inhalation
Explanation: