mountainvery cold at higher elevationspopulationthe amount of people living in an areapopulation densitynumber of people who live in a certain size areabirth ratehow many babies are born in a particular place during a particular timeethnicitybelonging to a group of people connected by language, heritage, religion, and customseconomicsset of principles by which a society decides and organizes the ownership, allocation, and use of resourcesgross domestic producttotal value of goods and services produced in a yearstandard of livingmeasures the quality of life people have
