Ageologist finds that the number of fossils of a single species decreased significantly in higher rock layers compared to deeper ones.
which is the best conclusion?
a.
the species became more abundant.
b.
the species became more difficult to fossilize.
c.
the species became less abundant.
d.
the species became extinct.

answer; i believe that the correct answer to the above question is; (tariff)

i am confused, what is the question? i can you out if you put it into more depth.

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.