In the 1870s a dramatic change in technology allowed which of the following energy sources to become cheap and efficient?
A) Falling water.
B) Solar power.
C) Electricity.
D) Harnessed animals.
E) Human labor.

Question

Quizplus · Accepted Answer

In the 1870s, advancements in technology, particularly the development of the electric generator and improvements in electrical distribution, made electricity a cheap and efficient energy source.

In the 1870s a Dramatic Change in Technology Allowed Which