From about 1000 - 1400 CE, the Pueblo people c.<span> constructed advanced irrigation systems. This was during the 300-year drought called the Great Drought. Because of this, farmers were able to develop several farming techniques to lessen their use of water in agriculture. One of the developments were irrigation systems.</span>
<span>The declaration abolished the three estates.
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<span>"C) Many travelers came from the west and settled in the region" would be the best option, because although they came in large numbers not all of them stayed in the region permanently.</span>
The south opposed the national roads in the west
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Hope this helps :D
