<span>One is economic and the other is political</span>
Answer:
Eventually, railways lowered the cost of transporting many kinds of goods across great distances. These advances in transport helped drive settlement in the western regions of North America. They were also essential to the nation's industrialization. The resulting growth in productivity was astonishing.D
Explanation:
The conquistadors came looking for gold and other valuable things.
Answer:
50-90%
Explanation:
The exact number is unknown but most of them died of dieses