First of all it's easier to filter the water than to go spend $500 to get a glass of water from Canadaand sometimes you just need to use what you had we don't need to be spending so much money on something we don't have that we don't really needand we have water filters we need to use them we are not relying on streams and things like that to live now so just use a water filter that you have at your house or maybe one of your friends have one
It's an area that is organized around a focal/nodal point where there is a central focus. The central diminishes as you move outwards from the point. Generally used to display information about economic activities.
<span>it was a source of food and trade</span>