Goods and services supply what people need or want.
Goods are things such as food and clothing.
Services include things such as health care and police protection.
A country needs natural and human resources.
Natural resources include fresh water supplies, farmland and energy sources such as oil and wind.
Human resources include a skilled workforce that can produce goods and services.
Once we have a supply of goods or services, they need to be distributed throughout of a country.
Highways and railways are both ways to transport things from one part of a country to another.
Electricity is distributed through a system of transmission lines.
We live in an age of advertising.
Advertising lets people know about goods and services.
It educates people about the products being advertised.
Trade allows for the exchange of goods and services between different countries.
Exports are goods and services that are sold to another country.
Imports are goods and services that are bought from another country.
For example, many countries import oil from countries such as Saudi Arabia.(沙特阿拉伯）
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