It is absolutely imperative that you answer these questions as they are stated.  Having an overall philosophy or statement of graduate school/public health is fine, but we are asking these questions specifically to determine whether this program is right for you.  Failure to do so may hamper your application.

For example,

1.  What personal and professional experiences have led you to select a graduate degree in health education? Why have you selected SIU’s health education graduate program?

    I have decided to earn my graduate degree in health education because....

2.  What are your professional plans once you complete the degree?
 

    My plans after completing my degree would be to ...