HELP PLZ!!. 12,000 years ago, what changed that caused human populations to increase tenfold? Choose the best answer.
Agriculture made it possible for land areas to support larger populations.
Improved hunting tools and methods made it easier to get food.
Civilization made it easier for people to cooperate and share food.
People in earlier times had much larger families which made the population grow rapidly.

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.