Answer:
the answers are B- salt was used as a form of currency and D- salt was used to preserve food.
Explanation:
They did want to be imperial
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.
Answer:
Preventing the creation of a national bank
