Answer:
The second industrial revolution began whith the adoption of new steel production techniques. Thanks to these techniques, steel became cheaper more widely adopted.
Railroads began to be made of steel instead of iron. Because steel is a much more powerful material, rails now lasted for longer periods of time and were more powerful. This sparked the introduction of railroads, first in the United Kingdom, and then in the United States.
Railroads became the most important source of transportation, both of passengers and materials. In the U.S. the railroad network was extensive and allowed the shipping of goods from coast to coast. This meant increases in productivity and capital that could be reinvested in the adoption of new technologies, forming a virtuous cycle.
I know how that feels because a lot of time people don't give the correct answer or when all the answer choices look the same and there different in like a letter so I know how you fell and I makes a different on your grade
Where’s the picture or a distributionof what you’re trying to ask?
Answer:
Fundó el Sacro Imperio Romano Germánico, estimuló la vida económica y política europea y fomentó el renacimiento cultural conocido como el Renacimiento carolingio. En contraste con el declive general de Europa occidental a partir del siglo VII, la era de Carlomagno marca un renacimiento significativo y un punto de inflexión.
Jews
Explanation:Jews where leaving Germany because the Germans where killing them