Describe three pricipal ways civilization spreads from one region to another

Hiya there!

Explanation:

The three principal ways civilization spreads from one region to another is through trade, travel and warfare. When people travel, they bring with them goods from their region to another and this would be the start of contributing and sharing, and trading their ways and ideas of growing crops and raising other goods.

Hope this helped!  ^w^

Credit sourced from " ParidhiAgrawal"

c, to compete

i am not 100% positive but i think it is is b. both are non-partisan jobs

i am pretty sure that members of congress have term limits, can be impeached, and are nominated through direct popular vote.