What is the purpose of lines 1 through 24 in the passage?

How is dr. lanyon characterized in the excerpt? as friendly as arrogant as wise as mournful

Examine an advertising campaign created by the center for disease control that promotes the influenza (flu) vaccination. analyze the campaign to discover the target audience and the advertising techniques used. then, evaluate the effectiveness of these advertising techniques. write a five-paragraph essay in which you explain how the advertising campaign effectively promotes the influenza vaccination to a range of audiences.

The wavelike properties of electrons are useful in ?