Continent- any of the world's main continuous expanses of land.
Income- money received, especially on a regular basis, for work or through investments.
Trade- the action of buying and selling goods and services.
Service Industries- a business that does work for a customer, and occasionally provides goods, but is not involved in manufacturing.
Entrepreneur- a person who comes up with an idea that organizes and operates a business or businesses, taking on greater than normal financial risks in order to do so.