Subsequince farming- not for profit- grew only enough for themselves- comercialfarming- for profit- sold goods to public- similarities- both grew ate some of what they grew.
National park's are meant to be a safe place for animals and nature where they can't be harmed or pursued for human use. The second question depends on your point of view but the natural environment does need to be protected.
Bodies of water often were used to create borders EX: in the eastern united states the states borders are rivers because it is easier than making imaginary borders
