Why was there such a large growth in maunfacturing and the economy?

Economic growth increase when the machinery available is useful and sufficient in the manufacture of diverse commodities that sell in the market. When there are no types of machinery, or they are insufficient, the output will be low.

Therefore, the economy, in general, has been made easier through the implementation of different types of machinery that ease the production of essential products in diverse markets. Every sector of creation has the implementation strategies that make it easier for various production activities.

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.

answer: in 1900, there were no "workplace safety laws"!

explanation: at the beginning of this century, workers in the united states faced remarkably high health and safety risks on the job.

a century ago in 1900 about three hundred out of every one hundred thousand miners were killed on the job each year.

[industria] developments occurred within a legal and regulatory climate that diminished employer’s interest in safety. as a result, americans developed production methods that were both highly productive and often very dangerous.