Answers PA-US History 1850 to Present A New American IndustriesQuestion 5

5

QuizMultiple Choice

New American Industries

Question 5 • PA-US History: 1850 to Present A

Which invention was most important in revolutionizing the meat industry?

Answer

A

air brakes

B

knuckle couplers

C

the Pullman car

D

the refrigerator car

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