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contiguous areas that are joined together inside a common boundary
megalopolis huge urban settlement made up of several large cities
coral reef structure formed by the skeletons of small sea animals
free enterprise system economic system that operates on free competition, in which people start and own businesses with limited government intervention
fossil fuel fuel formed in the earth, such as coal, oil or natural gas
landfill area where trash companies dump the waste they collect
recycling reusing materials instead of throwing them away
free trade trade without barriers like tariffs or quotas so that goods flow freely between countries
representative democracy government where the people are represented by elected officials
federal republic form of government in which the national and state governments share power
amend to change the basic laws of a government
ethnic group people who share a common culture, language, or history
rural relating to the countryside
urban relating to the city
suburb smaller community located in the area surrounding a city
Created by: ljh2015