Answer:
The answer is "
".
Explanation:

So,
are in the same rate because M=10 is finite.
Answer: C. Industrialization created factory jobs in urban areas while eliminating agricultural jobs in rural areas.
Explanation:
In the late 19th century, industrialization was in full swing and technology was being created that made farming more efficient. This led to a loss of jobs for people in the rural areas who depended mostly on farming.
These people then had to move to urban areas where industrialization had led to the construction of factories that required more labor. This significantly increased rural to urban migration.
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Power efficiency is defined as the ratio of the output power divided by the input power:
Efficiency= out/in • 100%
So, (120 - 45)J / 120J • 100% = 62.5%