Which factor contributed to the fall of the Han

dynasty, the fall of the Roman Empire, and the

fall of the Abbasid Empire?

(1) invasions by nomadic peoples from Central

Asia

(2) demands for religious freedom by Christians

(3) long periods of drought that led to isolation

(4) dependence on slaves to produce manufactured goods

1) invasions by nomadic peoples from Central Asia" is the one unfying factor that contributed to the fall of the Han dynasty, the fall of the Roman Empire, and the

fall of the Abbasid Empire.

Explanation:

The fall of the empire and therefore the dynasty were similar as a result of each toughened social unrest throughout their collapse. The autumn of Rome and Han dynasty China were additionally similar as a result of they each round-faced roving invasions that greatly contributed to their decline.

"(1) invasions by nomadic peoples from Central Asia" is the one unfying factor that contributed to the fall of the Han dynasty, the fall of the Roman Empire, and the

fall of the Abbasid Empire.