Multiple
which scientific invention gained enormous popularity in the early twentieth century and was used by almost half of americans?
a.
telephone
b.
radio
c.
computer
d.
internet
e.
light bulbs

radio or lightbulbs

Explanation:

I think it's the radio because it was in 1895

I don't think many people had telephones in the early twentieth century (invented 1876)

the computer was invented in the 1870's but they were super big so no one had them in their houses then.

lightbulbs were invented 1879

the internet was invented in the 1980's so not this one.

sadi to be the richest man ever with a net worth of 500b or half a trillion there is also a story i heard if you wanna know

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