Answer:
Living conditions in many of the city's tenements did endanger the health of residents. ... of the ideas that would influence the emerging field of public health. ... De Wolf's methods for preventing the spread of contagious disease ... of recently arrived Polish, Greek, Italian, and Eastern European families.
Him and his friend were sent home for organizing student-lead protests and manifestations. This foreshadowed his devotion to activism and wanting to do what he could to make a change that was important to him.
Answer & Explanation:
When the going gets tough, the "summer soldier" and the "sunshine patriot" will stop helping. It's easy to help when you're not in dangerous and hard situations.
a: emperor ...............
