WAEC - Economics (2008 - No. 44)
Trades among nations is desirable because
enables people in a country to know those in other countries
makes it possible for people in a country to enjoy the goods and services produced in other countries
enables residents in country a to understand the language of residents of other countriesd
makes it possible for a country to have the currencies of other countries
Explanation
Countries engage in international trade so that they can enjoy the goods and services produced in other countries.