Introduction Unit The United States

Match the following

• weather over several years

• climate

• everything that surrounds us

• region

• a single environment

• ecoystem

• large area with unique features

• census

• population count

• environment

people who leave one country to live in another

• immigrants

• ethnic group

• citizen

• historian

people who have the same language, customs, and history

• immigrants

• citizens

• ethnic group

• residents

member of a country

• American

• citizen

• immigrant

• census

how a country uses its resources to produce goods and services

• economy

• supply

• demand

• opportunity cost

amount of a product available at a given price

• demand

• supply

• economy

• cost-benefit decision

amount of a product people are willing to buy at a given price

• economy

• opportunity cost

• supply

• demand

judgment about whether the advantages of buying justify the expense

• cost-benefit decision

• economy

• service

• opportunity cost

what is lost when deciding to do one thing instead of another

• cost-benefit decision

• supply

• product

• opportunity cost