All terms in this list:

import: to bring goods in from another country.

export: to send goods to another country for sale or trade.

surplus: having more of a thing or product than what is needed.

goods: items that satisfy human wants or needs (merchandise or possessions).

services: tasks performed (an action or work).

specialization: to provide a particular product or service.

interdependence: two or more people or things that rely on each other.

natural resources: anything from the earth that is used to help make something.

geographic feature: landforms on the earth (mountains, rivers, lakes, plains...).