Ar in the
How did companies tell the public about new
products?
O by hiring door-to-door salespeople
by posting flyers in neighborhoods
by advertising in newspapers and magazines

geography

this is because warmer climates often don't get people sick from the flu and regions where it was often colder more people received the flu. hope this if you need more reasoning i am here to

to protest slavery i would think it would be a

the poor lived on the docks by the sea, and the wealthy lived in highly populated urban areas. that is the answer