The correct answer to this open question is the following.
Although there are no options attached or further context and references, we can say the following.
The Aztecs have created one of the most sophisticated civilizations on the planet three and a half centuries before the United States.
The Aztecs were one of the most interesting and advanced civilizations in Mesoamerica.
They were known to be fierce warriors and that was true. But they also had elevated knowledge in mathematics, architecture, engineering, irrigation, and astronomy.
The Aztecs created one of the most sophisticated civilizations. They built their capital city over a lake. Yes, the Texcoco lake. There, they built the impressive and beautiful Tenochtitlan, the capital city of the empire. They built water canals for the transportation of people and goods. In these water canals, they built their chinampas, a portion of land where they lived and grew crops. Very impressive for its time to the degree that Spanish conquerors marveled when they arrive at Tenochtitlan for the first, time.
These developments resulted in much higher casualty rates that in the past because these new weapons were more destructive and allowed for larger scale military actions to take place. Also arguably these types of weapons and other military advancements at this time led to increases in the size of armies.
Answer:
Increased population and demands on the rivers from urbanization have depleted the once-fertile soil. The construction of multiple dams has also put more pressure on the area, leading to lower water output and quality
Thanks! Please mark me brainliest if this could help!
Adults aged 18-21 were given the right to vote in 1971
