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.
He doesn’t record who works for him. No names or dates
Answer:
domesticated animals were used to haul food over long distances
They wanted to improve the economic situation of the black people
In the 1890's, the main goal of those who supported United States imperialism was creating a market for trades and obtaining naval bases. During the period of the 1990's, the United States became a great industrial power. They needed to sell the goods manufactured in their factories. For this purpose they needed to find new market.
