Which is an invention that improved safety for railway passengers? O refrigerated rail cars
O Pullman sleeping cars
O time standardization
O air brakes

During the age of global expansion and encounter, many individuals brought about change. how might we prepare for changes today?

Plz which of the following spanish conquistadors did not explore large parts of what is now the united states? a. juan ponce de leon. b. hernando cortés. c. hernando de soto. d. francisco coronado.

Mee why did the government control the news and information americans received about the war? to eliminate propaganda that unfairly targeted immigrants to influence public opinion in support of the war effort to inform americans about troop movements and major battles