Section 1
Countries Share Their Extra Goods
Key Idea
No country can make or grow everything its people need. One country might have a lot of a certain food, like bananas, but not enough of another, like wheat for bread. Another country might have the opposite problem.
To solve this, countries trade with each other. The country with extra bananas can swap them for wheat from the other country. This way, both countries can get the different goods they want and need.