Which totally revolutionized industry by increasing efficiency?

Probably the most important invention which drastically increased efficiency in industry was the invention of and subsequent use of the production line. 

The production line had a major impact on efficiency in factories and lead to a much greater output. This enabled factories to produce much more goods as they did before, enabling more sales. 

Answer Choices:

A) the factory system

B) mass production

C) new materials

D) water power

The correct answer to this question is B) mass production.

Explanation:

Edge2021 ;)

Humid continental climate is found in the interior of continents between the 30 and 60 degrees latitude, but usually above the 40 degree line.   40 degrees north of the equator means less direct sunlight and therefore less warmth.   this climate is mainly found in the northern hemisphere since there are no major landmasses in the southern hemisphere.  if you live in northern indiana, you know all about humid continental because that is the climate type you have!