New technologies like steam engines, railroads, and telegraphs made for communication and transportation easier. The ability to source and transport materials across the country with ease turned many local businesses into national companies.
Answer:B, E, C
Explanation:these are all the answers. you should get them right
Answer:
the pic isn't clear take a clearer one
The correct answer is A. Technological advances such as s<em>team power, air brakes, automatica lubricators and steel tracks</em> have affected the railroads very positively, since it has made it possible that the rail network could become a safer, more efficient and more reliable means of transportation for goods.
The correct answer is A. While the states are free to make their own laws they cannot make laws that violate the constitution. For example a state cant legalize murder.
