Select all the correct answers. Which two causes of decline were common to the Roman, Han, and Gupta empires?
A. Political movements worked to overthrow the government to create a utopia.
B. Powerful lords broke the empire into three separate parts.
C. Trade with other nations declined as the government weakened.
D. Nomadic invaders sacked and destroyed property within the empire.
E. New religions replaced those of the people in the empire.

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.

the answer is d.index