Answer:A
the Incan civilization was known for the impressive waterworks in their city centers. Some of these included canals, fountains, drainage systems, and expansive irrigation.
One example of their advancement in this area is the Incan citadel called Machu Picchu which is said to be "the pinnacle of the architectural and engineering works of the Inca civilization" when talking about its water supply system.
Answer: Gold
Explanation: "Spanish explorer Francisco Pizarro heard rumors of an empire to the south that had large amounts of gold."
The correct answer among all the other choice is D. U.S. naval blockade of Cuba. This event resulted in the greatest threat of nuclear war. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
The election of 1800 was so important because Thomas Jefferson was the first U.S. president from the Democratic-Republican party.
