Question

which product was introduced during the second industrial revolution?
microscope
electric streetcar
plow
spinning jenny

Explanation:

The Second - Industrial Revolution (1870 - 1914) was marked by the widespread use of electricity and new transportation technologies. Microscopes were developed much earlier. Plows are ancient agricultural tools. The spinning jenny was an invention of the First Industrial Revolution. Electric streetcars emerged during the Second Industrial Revolution as a result of the development of electrical power.

Answer:

B. electric streetcar