population hg Flashcards
overpopulation def
to many people for the resources available in a given area
underpopulation def
too few people for the resources available in a given area
population distribution def
how spread out people are in a certain area of land / the concentration of people in an area
population density def
the average of people living in a certain area in population per km squared
migration definition
movement of people from one place to another to live for work permanently or seminoermanently
international migration def
the movement of people to a different country from one country
internal migration def
the movement of people within one country
how many people in the world
7.8 billion people
population def
total number of people inhabiting a country city or any district or area
population growth rate def
is the rate at which the number of individuals in a population increases in a year expressed as a % of the initial population
population explosion def
the dramatic rise in the world population which has taken place during the last two centuries
birth rate def
number of babies being born each year in a given country or area
death rate def
amount of people dying each year in a given country or area
net migration def
difference between number of immigrants / emigrants throughout the year
natural population change def
difference between number of live births and deaths per year
