Which feature did radio in the 1920s offer that other inventions did not offer

A: People could listen to music in real time.

Explanation:

edg2020

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation:

the poor lived on the docks by the sea, and the wealthy lived in highly populated urban areas. that is the answer