The correct answer is extracting silver from the land using slave labor.
Hunting and managing the fur trade was held by the French while food and tobacco was mostly done by the British. The Spaniards extracted silver and gold from the South American continent using slaves, both local and imported, and they gained a lot of wealth from that trade.
While the Romans may not have contributed as much to the field of philosophy as the ancient Greeks, they were able to expand on many previously existing schools of thought. One of these areas is known as Stoicism.
<span>General Zachary Taylor (1784-1850) commanded the
northern campaign in the Mexican-American War and later became the
twelfth president of the United States. President Polk ordered General Taylor to approach the Rio Grande after the U.S. annexed Texas in late 1845.</span>
Pretty sure it's surface lakes. There are a lot of lakes and dam authorities. Not 100% sure but only reasonable answer.