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saul85 [17]
3 years ago
6

In the Second Industrial Revolution , what innovations opened up new industrial frontiers?

History
1 answer:
vova2212 [387]3 years ago
4 0
The rapid production of steel and steel mills lead to innovations such as skyscrapers. Also during this time, electricity became more abundant, leading to things such as telephones. Automobiles also started to be created.
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