Answer:
Not doing so would weaken the South's position.
Explanation:
No, the Colombian exchange brought new food to the Americas such as cattle, pigs, and wheat (in exchange for foods such as tomatoes, squash, and beans).
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.
A. Companies compete with each other for business
All of the other answers can be safely eliminated since they are more characteristic of a socialist economy. Answer choice A also makes sense, considering that private companies in capitalist countries like the United States compete with each other for business all the time.
