china
They needed slaves to work on their plantations.
Demography is the study of human population dynamics and it is used to determine the Natural Resources that will be needed to feed the people in a region.
As with all growing nations it needed more space and greater resources
In general, the higher the population of a species, the lower the potential for survival of any individual member because of the finite supply of needed resources.
There is a limit to available resources and all organisms in an ecosystem compete for those resources. Those that are better adapted, will obtain higher amounts of those resources leaving less for those that do not have the best abilities. These organisms that did not obtain all the resources they needed will die therefore controlling population growth and the size of the population.
Reproduction & the increase of produce or other resources needed to survive.
Sparta needed many natural resources, but the biggest need was men. The Spartans were a warrior cult who killed the babies they deemed unfit to live. This shrunk their numbers making it difficult to maintain their army.
what is carrying capacity?
you are needed to do something
You Momma are the resources
Lack of material resources, transportation, industrial capability, and population plus a weak central government needed to win the war.
Golds mines and natural resources (which are very useful and are needed in the world) popped up and everyone wanted to mine and harvest them to get money and lots of food making the population boom.