Chapter 2 Flashcards
Around the world, humans are…
not distributed equally
what does a cartogram do?
depicts size of countries according to population rather that land area.
2/3 of the worlds population live in 4 areas, where are they?
East Asia, South Asia, Southeast Asia, and Europe
extreme climate and topography will result in…
smaller populations in those regions, people tend to gravitate more to average climates.
describe the term ecumene.
portion of earth occupied by permanent human settlement
what is population density?
numbers of humans living in an area
what is arable land?
land suitable for agriculture
what are the 3 types of population density? describe them
- arithmetic density: total number of people divided by total land area. it allows for the comparison of populations
- Physiological density: number of people per unit area of arable land.
- agricultural density: ratio of number of farmers to the total amount of arable land
what do geographers measure population with?
natural increase rate(NIR), crude birth rate(CBR), crude death rate(CDR)
what is a census?
complete enumeration of population
what is the natural increase rate?
percentage growth rate of a population in a year, computed as the crude birth rate minus the crude death rate.
what is the current world NIR
1.1%
what does the term “doubling time” mean?
number of years needed to double a population
what is the current population distribution around the world?
asia: 66%
africa: 20%
Latin America: 9%
North America: 4%
Europe and Russia: 1%
what is the crude death rate?
total live births in a year for every 1000 people alive in society. it is currently 20