In the early 1800s, mass production was made possible by

In the early 1800s, mass production was made possible by a series of inventions which made possible to use a few amount of energy to produce an unprecedent amount of products. The most important, by any means, was the steam machine, as it converted carbon into a lot of energy, giving the substance and power for the industrial revolution to rise.  

the following best describes postwar era writers in their works:

many writers,authors,novelists,poets concentrated more on social art and social writing and stayed away from political writings.

the correct answer is b

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