AnswersGV 2017 - Lifetime Fitness PE961Physical Activity Benefits

Physical Activity Benefits Answers

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8

Which best describes a development that improved railroad safety?

A
Railroads adopted standard time to coordinate schedules.
B
Railroads offered fold-down beds so that people could sleep more comfortably.
C
Companies standardized track technology so that they could use each other’s tracks.
D
Companies replaced hand-operated brakes with air brakes on trains.
10

Which is an invention that improved safety for railway passengers?

A
refrigerated rail cars
B
Pullman sleeping cars
C
time standardization
D
air brakes

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