The layer of the sun that radiates most of the light that reaches Earth is called the photosphere.
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It's either Dearing or Independence.
D. shinto It's on Goohle if you search Shinto
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.