There are basically two market exchange; solo exchange and functional relationships. In Solo exchange, the two parties may not likely do business together again. Example is the stores purchases are made from during vacation, they is a high odd of ever doing businesses with such shops.
On the other hand, in a functional relationship, there is an established relationship between the buyer and seller, there is a tendency of continued exchange. an example is the relationship with a neighbourhood an individual frequently buys groceries from.
Sparse vegetation has influenced a traditional diet that consists of fish and hunted food. Snow and ice influenced traditional forms of housing, and methods of transportation must be compatible with snowy environments.