USA HISTORY

WESTWARD EXPANSION INDUSTRIALIZATION URBANIZATION 1870 1900

AMERICAN INDUSTRY DEVELOPMENT IN THE GILDED AGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What innovation made manufacturing more efficient?
A
Electricity
B
Railroad
C
Telephone
D
Oil refining
Explanation: 

Detailed explanation-1: -LED lights LED vs CFL bulbs differ in technology. Instead of heating a filament until it glows, LED lights produce light from semiconductors. LED lights use 85% less energy and last 25 times longer than traditional bulbs.

There is 1 question to complete.