America should steer clear of foreign alliances when it has liberty to do so
Bringing water in from different areas can cause diseases and medical problems. Unfamiliar minerals and vitamins, along with diseases and bacteria, can manifest the water. People or animals whom have not adapted to the water's different diseases and bacteria can catch these diseases and get sick from the bacteria. Natives, on the other hand, may have adapted to the water's bacteria, and the body changes in order to fight off the different bacterium.
In the Biblical sense there is a difference, although I have seen heated debates on this question even among Christians. Most ancient languages have two words for these "entities". In the Hungarian Bible translations usually the same word is used for both as in the time of the first Hungarian Bible translation there was no Hungarian word for "spirit" - it was created on in the 18th century. This caused a lot of confusion. In Greek you have psyche and pneuma, in Hebrew you have nefesh and ruach - you can find a lot of discussion on the difference. Here I put very briefly my rudimentary idea about this. I do not believe that there are three substances: matter soul and spirit. My impression is that the soul is a kind of "interface" between spirit and matter (at least in a certain sense). Theologians will explain it more precisely. Nevertheless soul is the center of the conscious self where decisions are made (soul = life in the New Testament). There are several other aspects which I would comment - but I am not sure whether your question is intended in this direction.
More and more people started growing crops so the people didn't have to keep hunting animals.
They still hunted just not all the time.
Hope this helped!!!