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.
Answer:
None of them will give or take points. I guess just put all three? Whatever you choose depends on the two to three lines that you in the previous question.
Explanation:
D. construction and protection of roads that ensured safe and easy travel
Answer:
h'(1)=f''(g(1))g'(1)=6f'(2)=6*5=30
Answer: Members of the House of Representatives serve two-year terms and are considered for reelection every even year. Senators however, serve six-year terms and elections to the Senate are staggered over even years so that only about 1/3 of the Senate is up for reelection during any election.
Explanation: