What causes a civilization to fall?

Also a Civilization could fall for any reason from killing the king to starting war inside

Explanation:

From the collapse of ancient Rome to the fall of the Mayan empire, evidence from archaeology suggests that five factors have almost invariably been involved in the loss of civilizations: uncontrollable population movements; new epidemic diseases; failing states leading to increased warfare; collapse of trade routes

answer; (d) one tectonic plate plunges beneath another; (most common,convergent boundaries)

since learning about his learning patterns, logan has become very aware of the thoughts and feelings he experiences as he listens to the “internal chatter” of his patterns.