Four most important population clusters
Two secondary population clusters
Eastern North America
Sparsely populated land causes
Ecumene- uninhabited land
Nonecumene- land that has been settled upon and developed to some extent
The total number of people to the total amount of land.
The amount of usable land and how many people can actually use it.
The number of farmers to the amount of agriculturally available land.
Crude Birth Rate (CBR)
Crude birth rate is the total number of live births to every one thousand alive on Earth.
Crude Death Rate (CDR)
Crude death rate is the total number of deaths to every one thousand people alive on Earth.
Natural Increase Rate (NRI)
The percentage of which a population grows in a year. Subtract the CDR from the CBR. NRI excludes migration. The NRI peaked in 2012 and is currently 1.2% globally.
How many years it will take to double the current population.
Total Fertility Rate (TFR)
How many children are made through the childbearing years of women.