in prehistoric times historians believe that humans used to a .....system called to trade things with one another. In a later ............................money was deveploped because it was more ..... Since then international..... Has grown and grown until today when its total value is around $16.5 trillion. The top four products or ..... traded are oil, coffee, natural gas and gold. For many countries .................for their economies. To make it easier to do business between of these products is countries in parts of the world, many nations have decided to taxes and duties so that prices are lower. However, ............................still happen and trade organisations such as the WTO (World Trade organization) often have to help
commodity
commerce
diverse
dispute
abolish
barter
agreements
convenient
busy
beneficial
increase
expensive
fundamental
interesting