What triggers a revolution? Is it one specific event? Is
it a series of events over time? Or is it something
else?

its when two or more groups can't come to a agreement therfor it builds up and over time and when a major event happens it triggers one group to start a so called "revolution"

hope this helps!

Explanation:

i learned this in hisotry

protectionism fosters competition and keeps price regulated is not an argument in favor of protectionism.

answer; /// you data to develop general ideas or theories;