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>
Well, freedom was a pretty important aspect of the enlightenment. It was in fact during this enlightenment era that American fought for and gain its independence. The declaration of Independence was very much influenced by Enlightenment philosopher, John Locke's ideas on human independence.
You can look up how John Locke influenced the US Declaration of Independence
They should because they are the ones that pass the laws. They should have a more active role, and know more about what is happening around them so they can make better choices.
So the question ask what is the result in the westward expansion in the mid 1800's and the best answer among your choices is letter A. increased dramatically. I hope you are satisfied with my answer and feel free to ask for more if you have clarifications