Which invention was most important in revolutionizing the meat industry?
1)air brakes
2)knuckle couplers
3)the pullman car
4)the refrigerator car

European expansion into africa left native regimes intact but had a strong impact on local societies what does this mean

Which answer best describes an advantage of shipping goods by canal? a) most towns would rather have canals then noisy railroads b) goods could travel very fast downstream in the canal system c) traveling by boat is a much more relaxing way to transport goods. d) heavy loads of goods could travel by boat more easily then if pulled by horses.

What effect did ww11 have on empires that had been created by european nations