Answer:
In desperate need of soldiers to help with the invasions, Rome hired mercenaries to defend its borders. According to some historians, many were Germanic warriors who did not feel loyalty to Rome. ... The most evident factor of the Roman Empire's fall was the invasions.
Explanation:
I would say, since I dont have the choices, i would say that it depends....
Answer:
the difference between fundamental and derived unit are:
fundamental unit: it does not depend upon other unit. ex- length, mass, time, temperature etc. They are not formed from other units.
derived unit: it depends upon other physical quantities. ex- m2(square)or sq.m.It is formed from the combination of two.or more fundamental units