Steel changed people’s lives by making possible the

a. invention of radio.
b. development of electricity.
c. construction of skyscrapers.
d. establishment of time zones.

I believe the answer is: c. construction of skyscrapers

Steels is used as the main material to create building foundation, which provide significantly stronger and balanced structure compared to woods or iron. This allow architects to design building with more height with lesser risk of falling down.

answer; the answer to the first question is (king james ii was replaced by his daughter mary and her dutch husband william of orange;

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.