Question

Which of these was invented in the second industrial revolution? telephone steel telegraph steamboat?

Answer 1

In the second phase of industrial revolution, Telephone and new uses of steel were discovered. In the first phase of industrial revolution, Telegraph and steamboat were already introduced. Along with Telephone and new uses of steel, in second industrial revolution, assembly lines were introduced and also safer means of electricity such as bulbs were produced.

Answer 2

The correct answer is the Telephone and new uses of steel.

Step-by-step explanation:

The Telegraph and steamboat were invented during the First Industrial Revolution between the mid-18th century to about 1830, The second Industrial Revolution lasted from the mid-19th century until the early 20th century.