What was one of the effects of finding a cure for yellow fever?

Be a 100% sureduring the summer of 1943, anne eagerly recounts how an enemy country drops out of the war. which country is it? a.italyb.germanyc.spainfyi: this is a question based on the story anne frank

What was the effect of the industrial revolution on the working class ?

Explain the importance of carnegie, morgan, and rockefeller on the american political scene of the early 1900's.