Is it important to distinguish between genocides and other atrocities? Why or why not?

Yes it is. There is a massive difference between genocide and a pyramid scheme, calling an instance of a pyramid scheme a "genocide" would be completely inaccurate and nonsensical.

Explanation:

where's the

it depends on which society you are referring to. many civilization performed rituals so the gods would with their growing season but the most well known is that of the aztecs. they would make sacrifices, usually animals, but sometimes humans as well.