Enslaved people from Africa were being traded for raw materials.
Answer:
Explanation:
"we saw several of the natives advancing towards our party, and one of them came up to us, to whom we gave some hawk's bells and glass beads, with which he was delighted. We asked him in return, for water, and after I had gone on board the ship, the natives came down to the shore with their calabashes full, and showed great pleasure in presenting us with it.”
the first meeting was friendly
, They offered Columbus things with pleasure.
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.