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Which application of a new technology can be attributed to an invention of Thomas Edison?
a
Diesel engines were used in the production of airplanes.
b
Sonar technology was used to track submarines.
c
Light bulbs made it efficient for factory workers to work at night.
d
Refrigerated railroad cars allowed food to be transported long distances.

The Knights of Labor and the America Federation of Labor developed in response to the-
a
decreased power of political machines
b
decreased profitability of the agricultural sector
c
increased need to protect worker interests
d
increased demand for skilled workers

Answer :

JJack11

Answer:

c

Light bulbs made it efficient for factory workers to work at night.

Explanation:

Even though Thomas Edison did not invent the light bulb, he indeed helped to produce the first commercially viable one. Before him, light bulbs were not durable and could not be sold. Edison was able to create a durable incandescent material that would make the light bulb durable, he designed a new technology that eliminated the air from inside the bulb and also developed a filament material that had high resistance.

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