I have no idea but almost all these
answers are all wrong the ones that they give
Two basic types of markets exist in any market economy: resource markets and product markets. The exchanges that take place in these markets benefit both the households and the firms that engage in exchanges. This lesson will introduce the circular flow of money, resources and goods and services in a market economy.
By using the wheel, mankind gained the ability to work more efficiently and travel more quickly. Besides its use in transportation, the wheel went on to become the basic principle behind almost every mechanical device.