Answer:
population , regions , river
A. The Aztecs were invaders and invaded the city called Tula. Tula was established where the abandoned Mayan cities were.
The answer is cultural diffusion.
Explanation:
Grief is the response to loss, particularly to the loss of someone or something that has died, to which a bond or affection was formed. Although conventionally focused on the emotional response to loss, it also has physical, cognitive, behavioral, social, cultural, spiritual and philosophical dimensions. While the terms are often used interchangeably, bereavement refers to the state of loss, and grief is the reaction to that loss.
Population census is data collected by the government which gives them an idea of the total population in a country/suburb or city. This information can also be sorted to see how many females/males, children/adults and visitors/residents
