Answer:
1. Invasions by Barbarian tribes
2. Economic troubles and over reliance on slave labor
3. The rise of the Eastern Empire
4. Overexpansion and military overspending
Explanation:
5. Government corruption and political instability
6. The arrival of the Huns and the migration of the Barbarian tribes
7. Christianity and the loss of traditional values
8. Weakening of the Roman legions