Asked by Anonymous
                What are two inventions that made modern city life possible? 
I know one of the inventions are skyscrapers but I am not certain of the answer to the other one.
            
        I know one of the inventions are skyscrapers but I am not certain of the answer to the other one.
Answers
                    Answered by
            Ms. Sue
            
    Plumbing with sewage treatment plants is even more important than skyscrapers.
Also -- if you have skyscrapers, you must also have Otis's invention.
http://inventors.about.com/od/estartinventions/a/Elevator.htm
    
Also -- if you have skyscrapers, you must also have Otis's invention.
http://inventors.about.com/od/estartinventions/a/Elevator.htm
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