The creation of the European Union (EU) and of the North American Free Trade Agreement (NAFTA) were efforts to "(1) attain economic benefits through regional
<span>organization"</span>
The primary difference between barter and currency systems is that a currency system uses an agreed-upon form of paper or coin money as an exchange system rather than directly trading goods and services through bartering.
Marte es el planeta interior más alejado del Sol. Es un planeta telúrico con una atmósfera delgada de dióxido de carbono, y posee dos satélites pequeños y de forma irregular, Fobos y Deimos (hijos del dios griego), que podrían ser asteroides capturados similares al asteroide troyano (5261) Eureka.
