Relier Pairs Demographic TermsVersion en ligne here are some key words and their definitions that are connected with studying population par Miss T Jack 1 Emigration Rate (ER) 2 Immigration Rate (IR) 3 Dependency Load 4 Life Expectancy 5 Refugee 6 Replacement Rate 7 Birth Rate (BR) 8 Death Rate (DR) the relationship between the # of deaths and size of the population. someone who flees their homeland for fear of their life but will return home when it is safe to do so how long a person is predicted to live. the # of people who permanently leave their home country with the intention of staying there the relationship between the # of births and the size of the population. the percentage of a country’s population who are younger than 15 and older than 65 (i.e. financially rely on others) the (“magic”) number of 2.1 children to keep the population stable the # of people who permanently move to another country