Question

which example best describes an external factor that causes the end of an empire? (1 point) changes in population the cost of running an empire civil war being overtaken by another empire

Explanation:

An external factor causing the end of an empire would be being overtaken by another empire. Civil - war is an internal factor, cost of running an empire is an internal economic factor, and changes in population can be due to internal or natural causes.

Answer:

being overtaken by another empire