Economics

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

services

goods and services

tangible goods

crude oil

exports exceeds its imports

imports exceed its exports

exports is equal to its imports

terms of trade is constant

Organization of African Unity

African Development Banks

European Union

United Nation Organization

large population size of the world

scarcity of resources

opportunity cost of goods and services

needs to satisfy every desire of man