1) Alexander Fleming discovered... a) anesthesia b) microscope c) penicillin d) surgery 2) This French scientist discovered the link between germs and disease. He also made milk drinkable. a) Louis Pasteur b) Joseph Lister c) Thomas Edison d) Benjamin Dairy 3) What is a labor union? a) A large factory b) Cheap labor from overseas c) Group of lower-class individuals d) Group of workers get together to increase their rights 4) Underground sewer systems were first introduced in these two cities... a) London and Berlin b) Paris and NYC c) London and NYC d) London and Paris 5) This German doctor discover the bacteria that caused tuberculosis. a) Robert Koch b) Alexander Fleming c) Louis Pasteur d) Thomas Edison

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