ANSWER BOTH QUESTIONS PLZZZ What was Islam? Who was involved in it?
How did Christian leaders adopt many Roman duties at the end of the empire?
How did Germanic tribes damage the Roman Empire?

1.) What was Islam? Who was involved in it?

Islam, major world religion promulgated by the Prophet Muhammad in Arabia in the 7th century ce.

2.)How did Christian leaders adopt many Roman duties at the end of the empire?

They believe in one God.

3.) How did Germanic tribes damage the Roman Empire?

German tribes forced their way into all parts of the western Roman Empire. ... When the Roman emperor Valens led a great army against the Visigoths, to the astonishment of Romans and Germans alike, the imperial force was scattered and the emperor slain.

Explanation:

it increase by 12% a year from 1812-1820