Answer:
Trade by barter
Explanation:
This economic system is known as the oldest economic system used by humans many years before money was first printed.
In this system, individuals traded their goods for another good that they wanted. It was not uncommon to see people trade copper for wheat or to trade a donkey for a dove.
This system made people to give out what they had (which they usually had in excess) for what they wanted.
Technology helps in dealing with economic emergencies like food shortage and disasters. Technology is used to study the existing environmental conditions in order for farmers to be guided with the right crops to plant at specific seasons to ensure maximum yields. In terms of disasters, technology is used for disaster risk reduction and management. This is done in order to minimize the effects that disasters have on the resources.
In 7th century A.D modern day Saudi Arabia.
This is a mastery test? Sorry can't help, It is against the rules...:(
