This is called monogamy as opposite to polygamy (multiple spouses at the same time).
<span> </span><span>The Arizona-Sonora Border:
Line, Region, Magnet, and Filter</span><span>.<span> . . Belonging truly to neither nation, it serves as a kind of cultural buffer zone for both, cultivating its own culture and traditions. Like other borders, it both attracts and repels. Like them, it is both barrier and filter. It is above all a stimulating cultural environment. . . .</span>--James S. Griffith
The Arizona Sonora border was established as a result of the Gadsden Purchase of 1853. It runs through desert and mountain country, from the western Chihuahuan Desert by New Mexico through a zone of grassland and oak-covered hills to the classic Sonoran Desert west of Nogales. The land gets more and more arid as one travels west, and the western third of the border is essentially devoid of human habitation. It is this stretch of the border, once a major road to the Colorado River, that has earned and kept the title El Camino del Diablo, "The Devil's Highway."</span>
Explanation:
If you shop online, you don't know whether the item that you're purchasing is real or fake and you won't know if it will arrive broken or intact while if you shop in a traditional environment, you will for sure know that the item your buying is 100 percent authentic and that it's in new condition.
Answer:
The endowment effect.
Explanation:
The endowment effect is the reluctancy to sell or throw away an object they own opposed to acquiring the same object if they do not own it. In this case, Mark is reluctant to sell his car. Even if it meant great significance to him or not, he would not buy the same model if he hadn't had it in the first place. He would buy another one, according to this theory.